--- /dev/null
+#!/bin/bash
+cd $(realpath "${BASH_SOURCE%/*}/src")
+
+files=$(find -name '*.md')
+
+for file in $files; do
+ cat "$file" | python3 -c 'import html,sys; print(html.unescape(sys.stdin.read()), end="")' > "$file.new"
+ mv "$file.new" "$file"
+done
* * *<figure id="attachment_707" style="width: 300px;" class="wp-caption alignleft">
-[<img class="size-medium wp-image-707" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2004-300x169.jpg" alt="The pie is a lie, but this chilli ..." width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2004.jpg)<figcaption class="wp-caption-text">The pie is a lie, but this chilli …</figcaption></figure> <figure id="attachment_708" style="width: 300px;" class="wp-caption alignleft">[<img class="size-medium wp-image-708" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2013-300x169.jpg" alt="All the Pi(e)s" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2013.jpg)<figcaption class="wp-caption-text">All the Pi(e)s</figcaption></figure> <figure id="attachment_706" style="width: 300px;" class="wp-caption alignleft">[<img class="wp-image-706 size-medium" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1999-300x169.jpg" alt="ARI - Audience Reaction Indicator" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1999.jpg)<figcaption class="wp-caption-text">ARI – Audience Reaction Indicator: Cocktail for Applause</figcaption></figure> <figure id="attachment_705" style="width: 300px;" class="wp-caption alignleft">[<img class="size-medium wp-image-705" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1996-300x169.jpg" alt="Tortendiagramm mit Selbstbezug (%Torte mi Mango, % Torte Erdbeere)" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1996.jpg)<figcaption class="wp-caption-text">xro’s Sieger-Torten-diagramm mit Selbstbezug (%Torte Mango, % Torte Erdbeere)</figcaption></figure>
\ No newline at end of file
+[<img class="size-medium wp-image-707" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2004-300x169.jpg" alt="The pie is a lie, but this chilli ..." width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2004.jpg)<figcaption class="wp-caption-text">The pie is a lie, but this chilli …</figcaption></figure> <figure id="attachment_708" style="width: 300px;" class="wp-caption alignleft">[<img class="size-medium wp-image-708" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2013-300x169.jpg" alt="All the Pi(e)s" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_2013.jpg)<figcaption class="wp-caption-text">All the Pi(e)s</figcaption></figure> <figure id="attachment_706" style="width: 300px;" class="wp-caption alignleft">[<img class="wp-image-706 size-medium" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1999-300x169.jpg" alt="ARI - Audience Reaction Indicator" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1999.jpg)<figcaption class="wp-caption-text">ARI – Audience Reaction Indicator: Cocktail for Applause</figcaption></figure> <figure id="attachment_705" style="width: 300px;" class="wp-caption alignleft">[<img class="size-medium wp-image-705" src="http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1996-300x169.jpg" alt="Tortendiagramm mit Selbstbezug (%Torte mi Mango, % Torte Erdbeere)" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2015/03/DSC_1996.jpg)<figcaption class="wp-caption-text">xro’s Sieger-Torten-diagramm mit Selbstbezug (%Torte Mango, % Torte Erdbeere)</figcaption></figure>
\ No newline at end of file
Finally, along comes the Lulzbot TAZ4.
-After just a few days it may be a bit much to say “Lulzbot rescued 3D printing for us”, but that’s about what it feels like right now.
+After just a few days it may be a bit much to say “Lulzbot rescued 3D printing for us”, but that’s about what it feels like right now.
-It has a large print area and is capable of very fine and precise prints. It follows all best-practices I’ve ever read about making 3D printers. E.g. it has a heated glass-surface which is perfect for PLA. Beyond that, you might even accuse Lulzbot of over-engineering. Looking at the industrial grade cable connectors, screws, bearings and shaft couplings, you know they didn’t skimp on the parts. Next to that is ships with a bag of quality tools which even includes a jar for mixing ABS and Acetone.<figure style="width: 414px;" class="wp-caption alignright">
+It has a large print area and is capable of very fine and precise prints. It follows all best-practices I’ve ever read about making 3D printers. E.g. it has a heated glass-surface which is perfect for PLA. Beyond that, you might even accuse Lulzbot of over-engineering. Looking at the industrial grade cable connectors, screws, bearings and shaft couplings, you know they didn’t skimp on the parts. Next to that is ships with a bag of quality tools which even includes a jar for mixing ABS and Acetone.<figure style="width: 414px;" class="wp-caption alignright">
[<img class="" src="//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/DSC_2156.JPG" alt="" width="414" height="233" />](//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/DSC_2156.JPG)<figcaption class="wp-caption-text">comes with ALL the tools</figcaption></figure>
All in all, the printer gives manages be at once a highly professional machine as well as a matured hackable open source project.
-Of course, it would not be bitchy us, if we didn’t find anything that could be improved. Most of that can be traced to the firmware: The sampling of the rotary encoder for once feels sluggish and imprecise even though the encoder itself is high-quality. We also wonder if the forces reset on sd-card change and usb-cable plugin is really necessary. Finally, it’s OK that the printer does not print from SDcard when still connected by USB, but it could display a warning instead of just plainly doing nothing after one selects “start”. Also the resonance frequencies of the printer could have been measured and the firmware modified so it would then avoid certain of those speeds and direction changes. Since it’s all just software, we may actually do something about that in the future <img class="icon" src="//realraum.at/wiki/lib/images/smileys/icon_smile.gif" alt=":-)" />On the hardware side, we noticed that the power supply’s cooling fan would still run long (hours) after the printer had been switched off. (Note: the only big off switch is on the DC voltage side of the printer). Not sure if that fan actually ever stops.
+Of course, it would not be bitchy us, if we didn’t find anything that could be improved. Most of that can be traced to the firmware: The sampling of the rotary encoder for once feels sluggish and imprecise even though the encoder itself is high-quality. We also wonder if the forces reset on sd-card change and usb-cable plugin is really necessary. Finally, it’s OK that the printer does not print from SDcard when still connected by USB, but it could display a warning instead of just plainly doing nothing after one selects “start”. Also the resonance frequencies of the printer could have been measured and the firmware modified so it would then avoid certain of those speeds and direction changes. Since it’s all just software, we may actually do something about that in the future <img class="icon" src="//realraum.at/wiki/lib/images/smileys/icon_smile.gif" alt=":-)" />On the hardware side, we noticed that the power supply’s cooling fan would still run long (hours) after the printer had been switched off. (Note: the only big off switch is on the DC voltage side of the printer). Not sure if that fan actually ever stops.
-All that (and on the bitchy side: the fact that it’s just that) really really shows just how much experience and know-how (hard won over the years of DIY 3D printing I’m sure) went into making the TAZ 3D Printer. Thanks #LuzlBot !!<figure style="width: 445px;" class="wp-caption alignleft">
+All that (and on the bitchy side: the fact that it’s just that) really really shows just how much experience and know-how (hard won over the years of DIY 3D printing I’m sure) went into making the TAZ 3D Printer. Thanks #LuzlBot !!<figure style="width: 445px;" class="wp-caption alignleft">
[<img class="" src="//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/DSC_2184.JPG" alt="" width="445" height="334" />](//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/DSC_2184.JPG)<figcaption class="wp-caption-text">first success with PLA: enclosure for our biohazard alcohol breath-o-meter</figcaption></figure> <figure style="width: 187px;" class="wp-caption alignleft">[<img class="" src="//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/DSC_2185.JPG" alt="" width="187" height="334" />](//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/DSC_2185.JPG)<figcaption class="wp-caption-text">Biohazard Breath-o-Meter</figcaption></figure>
\ No newline at end of file
Detailtiere Infos, Protokolle und weitere interne Informationen finden sich jedoch weiterhin in [unserem Wiki](http://wiki.realraum.at "realraum wiki").
-
\ No newline at end of file
+
\ No newline at end of file
<a href="http://wp.realraum.at/wp-content/uploads/2015/10/IMG_6323.jpg"><img class="alignnone size-thumbnail wp-image-213" src="//wp.realraum.at/wp-content/uploads/2015/10/IMG_6323-100x150.jpg" alt="IMG_6323" width="100" height="150" /></a> <a href="http://wp.realraum.at/wp-content/uploads/2015/10/IMG_6333.jpg"><img class="alignnone size-thumbnail wp-image-217" src="//wp.realraum.at/wp-content/uploads/2015/10/IMG_6333-150x100.jpg" alt="IMG_6333" width="150" height="100" /></a> <a href="http://wp.realraum.at/wp-content/uploads/2015/10/IMG_6312.jpg"><img class="alignnone size-thumbnail wp-image-208" src="//wp.realraum.at/wp-content/uploads/2015/10/IMG_6312-150x100.jpg" alt="IMG_6312" width="150" height="100" /></a> <a href="http://wp.realraum.at/wp-content/uploads/2015/10/IMG_6308.jpg"><img class="alignnone size-thumbnail wp-image-206" src="//wp.realraum.at/wp-content/uploads/2015/10/IMG_6308-100x150.jpg" alt="IMG_6308" width="100" height="150" /></a>
</div>
-
+
**[Mehr Bilder findet ihr in unserer Galerie](//galley.realraum.at/index.php?/category/73)**
\ No newline at end of file
Our trusty TAZ4 even takes us a bit further, spitting out a nice custom made BNC-cable holder.
- <figure style="width: 363px;" class="wp-caption alignleft">
+ <figure style="width: 363px;" class="wp-caption alignleft">
[<img class="" src="//galley.realraum.at/galleries/HackingUndProjekte/2015-10-20_LuzlbotTAZ4/491673.jpg" alt="" width="363" height="218" />](//www.thingiverse.com/thing:906081)<figcaption class="wp-caption-text">BNC Holder, printed with TAZ4</figcaption></figure>
-
\ No newline at end of file
+
\ No newline at end of file
N[<img class=" size-full wp-image-337 alignleft" src="http://wp.realraum.at/wp-content/uploads/2015/11/pgp-lock-logo.gif" alt="pgp-lock-logo" width="88" height="108" />](http://wp.realraum.at/wp-content/uploads/2015/11/pgp-lock-logo.gif)ext Tuesday (24th), I will hold an OpenPGP workshop in r³, starting at 20:00.
<p style="text-align: left;">
- OpenPGP is a (some say <em>the</em>) standard for providing strong cryptographic confidentiality and authenticity for files, messages, software, …
+ OpenPGP is a (some say <em>the</em>) standard for providing strong cryptographic confidentiality and authenticity for files, messages, software, …
</p>
If you use an operating system that authenticates its software updates (and that is not Windows), you probably already rely on it without knowing!
---
[<img class="alignnone wp-image-348 size-full" src="http://wp.realraum.at/wp-content/uploads/2015/12/madein-e1450839574953.jpg" alt="madein" width="619" height="283" />](http://wp.realraum.at/wp-content/uploads/2015/12/madein.jpg)
-Some of you might know this little signs saying “Made with ♥ in San Francisco” (or similar) on the webpages and gadgets you love. We also make stuff with ♥, not all of it digital, so we made our own sign. :-)
+Some of you might know this little signs saying “Made with ♥ in San Francisco” (or similar) on the webpages and gadgets you love. We also make stuff with ♥, not all of it digital, so we made our own sign. :-)
-If you feel like it, you can use our sign – our make your own. You can find the used file in our [_logo_ git Repository](https://github.com/realraum/logo/tree/master/made-with-love) on GitHub. (By the way, we use the [Cagliostro](http://www.1001fonts.com/cagliostro-font.html) font for our logo.)
\ No newline at end of file
+If you feel like it, you can use our sign – our make your own. You can find the used file in our [_logo_ git Repository](https://github.com/realraum/logo/tree/master/made-with-love) on GitHub. (By the way, we use the [Cagliostro](http://www.1001fonts.com/cagliostro-font.html) font for our logo.)
\ No newline at end of file
Although not a big fan of Christmas, tradition, and Christmas tradition, Stefan used the _realraum_ nightshift to build a lamp as a Wichtel present. The lamp features a mountain on the front side, which is lit from the inside by some simple LED setup. Furthermore, it is able to change the color of the light via an IR remote.
-The process of creating the lamp involved vectorizing the image, lasercutting the pieces, rasping some small errors, soldering and glueing of all the things! So basically all important parts of _realraum_‘s infrastructure were used in building the lamp. ;-)
+The process of creating the lamp involved vectorizing the image, lasercutting the pieces, rasping some small errors, soldering and glueing of all the things! So basically all important parts of _realraum_‘s infrastructure were used in building the lamp. ;-)
[<img class="alignnone wp-image-362 size-medium" src="http://wp.realraum.at/wp-content/uploads/2015/12/lampe3-300x225.jpg" alt="lampe3" width="300" height="225" />](http://wp.realraum.at/wp-content/uploads/2015/12/lampe3.jpg) [<img class="alignnone size-medium wp-image-370" src="http://wp.realraum.at/wp-content/uploads/2015/12/lampe5-300x225.jpg" alt="lampe5" width="300" height="225" />](http://wp.realraum.at/wp-content/uploads/2015/12/lampe5.jpg)
---
id: 512
-title: 'Open bioLab Graz Austria – Start in’s neue Jahr'
+title: 'Open bioLab Graz Austria – Start in’s neue Jahr'
date: 2016-01-22T21:00:23+00:00
author: Daniel D
layout: post
- realraum News
- Veranstaltungen
---
-2016…der Start in ein neues Jahr. Auch heuer sind wir top-motiviert um neue Projekte in und rund ums Labor ins Leben zu rufen. Das OLGA bietet jungen ForscherInnen und WissenschafterInnen die Möglichkeit sich selbst zu verwirklichen, ihren Wissensdrang nach zu gehen und den Durst nach alternativen Formen der Wissenschaft, wie sie stets als Praxis bezogene Handlung vorliegt, löschen können. Denn jede Theorie ist nichts wert ohne ihre Praxis.
+2016…der Start in ein neues Jahr. Auch heuer sind wir top-motiviert um neue Projekte in und rund ums Labor ins Leben zu rufen. Das OLGA bietet jungen ForscherInnen und WissenschafterInnen die Möglichkeit sich selbst zu verwirklichen, ihren Wissensdrang nach zu gehen und den Durst nach alternativen Formen der Wissenschaft, wie sie stets als Praxis bezogene Handlung vorliegt, löschen können. Denn jede Theorie ist nichts wert ohne ihre Praxis.
-“Self-made” wird bei uns groß geschrieben. Damit ist nicht nur das selbstständige Arbeiten sondern auch die Projektplanung, die Einrichtung, Werkzeug, Proben & Materialienbeschaffung…ganz im Namen der Maker-Scene.
+“Self-made” wird bei uns groß geschrieben. Damit ist nicht nur das selbstständige Arbeiten sondern auch die Projektplanung, die Einrichtung, Werkzeug, Proben & Materialienbeschaffung…ganz im Namen der Maker-Scene.
-
+
<img class="alignnone size-medium wp-image-413" src="http://wp.realraum.at/wp-content/uploads/2016/01/DSC_0657-300x169.jpg" alt="DSC_0657" width="300" height="169" />
-
+
Selbstverständlich bauen wir keine Photometer oder Zentrifugen selber, aber wir kümmern uns persönlich darum im Kontakt mit Instituten zu stehen, die teure Geräte aus Gründen kleinster Mängel entsorgen müssen, und holen uns diese direkt ab, schaffen sie in unser Labor und bügeln die Mängel wieder aus um dann ein tolles Mess- oder Arbeitsgerät zu besitzen.
Erst beim Entstehungsprozess denkt man darüber nach, wie man vom derzeitigen Zustand und vorhandenen Mitteln zum eigentlichen Ziel kommt. Und auch ohne großen finanziellen Mitteln kann man viel dazu beitragen, man muss nur ein bisschen grübeln und überlegen.
-
+
[<img class="alignnone size-medium wp-image-412" src="http://wp.realraum.at/wp-content/uploads/2016/01/DSC_0656-300x169.jpg" alt="DSC_0656" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2016/01/DSC_0656.jpg)
-
+
-
+
Was das Ziel ist, dass steht gar nicht so deutlich im Vordergrund. Die Erkenntnis während bestimmter Arbeitsschritte bringt einem persönlich viel mehr, denn Erfahrungen kann man später immer brauchen, oder man hat einfach Spaß an der Wissenschaft, so wie ich ;) Selbstverständlich aber versucht man auch etwas zu kreieren, seine Arbeit Früchte tragen zu lassen. Als Biohacker und non-profit Verein möchten wir die Erfahrungen und Resultate der Experimente mit Anderen teilen und versuchen so einen Schritt in die Richtung der freien und unabhängigen Forschung ganz im Sinne des Open-Access zu betreiben (man möge anmerken, dass das Verfassen von schriftlichen Arbeiten für sämtliche ForscherInnen nicht immer ein Vergnügen bereitet, weshalb die Motivation dafür bislang relativ klein, aber dennoch vorhanden ist ;) Als aktiv forschendes Mitglied möchte ich daher um etwas Nachsicht bitten, denn die meisten von uns sind noch hauptsächlich StudentInnen, ArbeiterInnen oder zu sozial um dauernd vor dem Bildschirm zu sitzen und zu schreiben :) Aber wir geben uns Mühe).
-
+
See ya,
---
id: 466
-title: 'TESLA – an ode to our electronics corner'
+title: 'TESLA – an ode to our electronics corner'
date: 2016-02-05T01:31:20+00:00
author: xro
layout: post
- english
- realraum News
---
-Not only has TESLA our electronics-corner been tidied up, it also has it’s own [page](https://wp.realraum.at/tesla-an-ode-to-our-electronics-corner/ "page") now.
\ No newline at end of file
+Not only has TESLA our electronics-corner been tidied up, it also has it’s own [page](https://wp.realraum.at/tesla-an-ode-to-our-electronics-corner/ "page") now.
\ No newline at end of file
- english
- Projekte
---
-[licht.realraum.at](http://licht.realraum.at "licht.realraum.at"), went FTLw today. That is… it became much Faster Than Last week. :-)
+[licht.realraum.at](http://licht.realraum.at "licht.realraum.at"), went FTLw today. That is… it became much Faster Than Last week. :-)
Since the Raspbian image upgrade and move to a bigger (but slower) SDcard, licht.realraum.at had become truly sluggish. To the point that pressing a button to turn on the light or change the stereo volume could take up to 6 seconds until something happened. (Obviously we disabled the swap-file long ago.)
-The problem was quickly identified. Processes don’t load quickly enough.
+The problem was quickly identified. Processes don’t load quickly enough.
The fact that the whole systems was a dunghill of bashscript cgi-scripts and python helper scripts also did not help. At all.
**First attempt** to rectify this: rewrite the python helper rf433ctl.py. Formerly it was a simple script that would be called by the cgi-script and send the appropriate bytes down to the teensy.
-Each call to it, however now took forever. So. I rewrote it as a daemon that would constantly stay in memory and be nudged by other instances of it via RPC. The idea being, if it’s already completely in memory, loading a second instance should be faster. Right? Wrong!. Unfortunately that did not work out at all.
+Each call to it, however now took forever. So. I rewrote it as a daemon that would constantly stay in memory and be nudged by other instances of it via RPC. The idea being, if it’s already completely in memory, loading a second instance should be faster. Right? Wrong!. Unfortunately that did not work out at all.
**Second attempt** to rectify this: Remove the kiosk functionality and thus memory-hog midori from licht. Thankfully a very nice person gifted us a RaspberryPi per (almost) anonymous letter, so we had the necessary hardware on-hand to split the functionality onto two separate boxes: [`licht.realraum.at`](http://licht.realraum.at "licht.realraum.at") and `smallkiosk.realraum.at`
Unfortunately, even freeing up 60% of memory did not even put a dent into the problem.
-So.. **third and last attempt**. Hit it with go ;-> In a 3 hour session, I rewrote the whole dunghill as a [monolithic golang daemon/webserver/tty-handler](https://github.com/realraum/deckenlichtschalter/tree/master/linux/golightctrl) which, once loaded, always stays in memory. Then I got rid of lighthttpd and the python scripts. Result… Speedup from 6s to <=0.05s !! Should have done this right away really…
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+So.. **third and last attempt**. Hit it with go ;-> In a 3 hour session, I rewrote the whole dunghill as a [monolithic golang daemon/webserver/tty-handler](https://github.com/realraum/deckenlichtschalter/tree/master/linux/golightctrl) which, once loaded, always stays in memory. Then I got rid of lighthttpd and the python scripts. Result… Speedup from 6s to <=0.05s !! Should have done this right away really…
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---
id: 404
-title: 'Open bioLab Graz Austria – Offenes Labortreffen 28.02.2016'
+title: 'Open bioLab Graz Austria – Offenes Labortreffen 28.02.2016'
date: 2016-02-29T21:30:04+00:00
author: Daniel D
layout: post
[<img class="alignnone size-medium wp-image-506" src="http://wp.realraum.at/wp-content/uploads/2016/01/ONC-300x169.jpg" alt="ONC" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2016/01/ONC.jpg)
-
+
Aus den Kulturen wurden dann Glycerol-Stocks hergestellt und bei -20°C gelagert, für Arbeiten im kommenden Semester. Die anderen Stämme vom OLGA werden dem selben Vorgang unterzogen.
[<img class="alignnone size-medium wp-image-505" src="http://wp.realraum.at/wp-content/uploads/2016/01/MacConkey-e1456777548244-169x300.jpg" alt="MacConkey" width="169" height="300" />](http://wp.realraum.at/wp-content/uploads/2016/01/MacConkey-e1456777668120.jpg)
-
+
Links oben: _E. coli_ K12 Rechts oben: _Pseudomonas sp_.
- english
- realraum News
---
-Once again, one month’s member’s meeting is adjourned and a lot of things are now to do. :)
+Once again, one month’s member’s meeting is adjourned and a lot of things are now to do. :)
**Lots of things happened.**
-Today we got the last necessary parts for our pneumatic tube system aka lasercutter/OLGA ventilation system, for one. There’s a good chance that after one year it will finally be completed this month. For another, the curtain got done. We decided to improve on the rings (currently zip-ties) that hold it, finally found matching rings and ordered them.
+Today we got the last necessary parts for our pneumatic tube system aka lasercutter/OLGA ventilation system, for one. There’s a good chance that after one year it will finally be completed this month. For another, the curtain got done. We decided to improve on the rings (currently zip-ties) that hold it, finally found matching rings and ordered them.
-NOC reports that project “one-member-account-for-everything” has come closer to completion. Instead of suffering problem riddled and partially insecure LDAP and outdated Kerberos we started to develop our own GSSAPI-compatible authentification replacement project. [Take a look.](https://github.com/whawty/auth)
+NOC reports that project “one-member-account-for-everything” has come closer to completion. Instead of suffering problem riddled and partially insecure LDAP and outdated Kerberos we started to develop our own GSSAPI-compatible authentification replacement project. [Take a look.](https://github.com/whawty/auth)
Status on our ticket-system is not so good. We tested two but they are suboptimal and we remain unconvinced. Still, we need one.
Somewhen after the Easter Holidays, there may be a Minix3 on BeagleBoneBlack install party.
-GLT16 is coming up and we’ll have a booth and are considering organising some post-Linuxtage party or event.
+GLT16 is coming up and we’ll have a booth and are considering organising some post-Linuxtage party or event.
Camp++ in Hungary in August now has a fixed entry on our schedule. Hopefully lots of Austrian Hackerspaces will take part.
\ No newline at end of file
Am Freitag, 29. April, und Samstag, 30. April, finden wieder die alljährlichen [Grazer Linuxtage](https://linuxtage.at/) statt. Neben vielen interessanten Workshops und Vorträgen ist der realraum auch heuer mit einem Stand vertreten.
-Außerdem [öffnen wir **am Freitag ab 19:00** unsere Türen](https://glt16-programm.linuxtage.at/events/176.html) für Linuxtage BesucherInnen und alle, die den realraum mal “in echt” kennenlernen wollen.
+Außerdem [öffnen wir **am Freitag ab 19:00** unsere Türen](https://glt16-programm.linuxtage.at/events/176.html) für Linuxtage BesucherInnen und alle, die den realraum mal “in echt” kennenlernen wollen.
Es erwarten euch gemütliche Musik und Sofas, realraum Mitglieder zum Fragen und Plaudern, Führungen durch die Räumlichkeiten, blinkende LEDs und kühles Mate.
Schaut vorbei, wir freuen uns auf euren Besuch!
-
+
<small>Es ist natürlich auch abseits dieses Abends jederzeit möglich, den realraum zu besuchen; auch alle <a href="https://wp.realraum.at/kalender/">unsere Veranstaltungen</a> sind kostenlos.</small>
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Since we already have a lot of experience with microfluidics and building space-worthy satellites, this turned out to be the perfect topic for our space. Beautiful discussion and knowledge exchange ensued and will continue on Sunday. :-)
-
+
[<img class="alignleft size-medium wp-image-553" src="http://wp.realraum.at/wp-content/uploads/2016/04/12960429_DSC02720-300x200.jpg" alt="12960429_DSC02720" width="300" height="200" />](http://wp.realraum.at/wp-content/uploads/2016/04/12960429_DSC02720.jpg)[<img class="alignright size-medium wp-image-552" src="http://wp.realraum.at/wp-content/uploads/2016/04/12960429_DSC02722-300x200.jpg" alt="12960429_DSC02722" width="300" height="200" />](http://wp.realraum.at/wp-content/uploads/2016/04/12960429_DSC02722.jpg)
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After some investigation, we discovered the problem, the extruder stepper motor was getting waaayyy tooo hot. Each time, about 10 to 15 minutes into a print, the extruder/feed stepper would reach 91°C and just stop moving. As no more filament was being extruded, prints were getting ruined.
-
+
-**Fixing It – First Attempts
+**Fixing It – First Attempts
**
My first idea was to trim the micropotis on the controller board and reduce the motorcurrent. Alas, there were no potis to be found. Then equinox suggested it might be a mechanical problem since everything was working fine the last eleven months.
-So we took the extruder apart twice. Second time around an hour later, we discovered that the M10 nut of the bolt conveying the filament which has the big cog on it’s other side, was way too tight. Presumably someone wanted to improve things by tightening the screw.
+So we took the extruder apart twice. Second time around an hour later, we discovered that the M10 nut of the bolt conveying the filament which has the big cog on it’s other side, was way too tight. Presumably someone wanted to improve things by tightening the screw.
The result being, that the washer pressed on the bearing and put the brakes on the extruder motor.
Additionally I discovered that the screw afixing the steppershaft to the PLA cogwheel was loose. Possibly the hot motor softened the PLA enough for the shaft to slip through and cause the motor to turn by itself.
-Sadly, none of these fixed solved our problem. Our NEMA17 still overheated, with 90°C being far outside it’s absolute maximum rating of 60°C ([Specs](%20https://www.lulzbot.com/store/parts/nema-17-stepper-motor)) and even further away from the 42°C operating temperature reported on the internet.
+Sadly, none of these fixed solved our problem. Our NEMA17 still overheated, with 90°C being far outside it’s absolute maximum rating of 60°C ([Specs](%20https://www.lulzbot.com/store/parts/nema-17-stepper-motor)) and even further away from the 42°C operating temperature reported on the internet.
<!--more-->
-**Fixing It – Delving into the firmware.**<figure id="attachment_580" style="width: 300px;" class="wp-caption alignright">
+**Fixing It – Delving into the firmware.**<figure id="attachment_580" style="width: 300px;" class="wp-caption alignright">
[<img class="wp-image-580 size-medium" src="http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_4926-300x253.jpg" alt="Heating resistor, dead and crumbling apart" width="300" height="253" />](http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_4926.jpg)<figcaption class="wp-caption-text">Heating resistor, dead and crumbling apart</figcaption></figure>
I thoroughly tested various settings but to my surprise, there did not seem to be any noticeable effect. In fact, even setting the current to zero, did not affect any of the steppers at all.
-The TAZ4 Marlin Firmware comes with it’s own SPI Arduino library, so I tried that as well as the newest version. No difference.
+The TAZ4 Marlin Firmware comes with it’s own SPI Arduino library, so I tried that as well as the newest version. No difference.
-Somewhere at this point, bug hunting went on so late into the night that I even started hallucinating bugs in the Marlin Firmware that weren’t really there.
+Somewhere at this point, bug hunting went on so late into the night that I even started hallucinating bugs in the Marlin Firmware that weren’t really there.
-
+
**Fixing Other Stuff.**<figure id="attachment_567" style="width: 300px;" class="wp-caption alignright">
During testing we also discovered, that the extruder would not heat up. A problem we quickly traced to the heating resistor which basically crumbled in my hand when I inspected it. This was probably a result of our printing experiments with Bridge Nylon at 335°C and quickly fixed as Lulzbot thankfully uses a common resistor that can easily be ordered online.
-
+
-**Fixing It – Delving into the hardware.**
+**Fixing It – Delving into the hardware.**
The next step was looking up the AD5206 datasheet and [RAMBO Schematics](https://github.com/ultimachine/RAMBo/blob/master/docs/RAMBoSchem.pdf), dusting off my OpenLogicBench analyser and sniff that SPI bus. This was not without problems, as the SPI signal was barely recognizable on an oscilloscope as long as the display was connected to the SPI bus as well. The logic analyser could not even differentiate HIGH from LOW. After disconnecting it, we had much more luck decoding signals on the oscilloscope but not with the logic analyser.<figure id="attachment_581" style="width: 300px;" class="wp-caption alignright">
Inspecting the backside of the board, one can even clearly see where the high current going through the E0 and Z stepper drivers blackened the backside of the board. (two chip-sized dark spots)
-
+
Seeing it as a nice opportunity to test some SMD soldering skills before replacing the whole board, I ordered some AD5206 chips.<figure id="attachment_582" style="width: 300px;" class="wp-caption alignright">
[<img class="size-medium wp-image-568" src="http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5213-300x169.jpg" alt="New board finally arrived" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5213.jpg)<figcaption class="wp-caption-text">New board finally arrived</figcaption></figure>
-**Fixing It – Ordering a replacement Rambo1.3L**
+**Fixing It – Ordering a replacement Rambo1.3L**
-Comparing prices including customs tax, we ordered from the UltiMachine online shop. The board was promptly shipped and arrived in Austria only a few days later. Not grounds for immediate joy however, as Austrian customs is currently understaffed and decided to not even look at our parcel for four !!! whole weeks. <conspiracy fun>I wonder if most of the customs officers were sent on holiday during the Obama EU visit, in order to make some roundabout statement about how, if only people would stop their valid fear of american food products and accept TTIP into their bodies and hearts, their parcels would arrive much faster. (No I obviously don’t really believe that, but it’s a fun idea)</conspiracy fun><figure id="attachment_598" style="width: 300px;" class="wp-caption alignright">
+Comparing prices including customs tax, we ordered from the UltiMachine online shop. The board was promptly shipped and arrived in Austria only a few days later. Not grounds for immediate joy however, as Austrian customs is currently understaffed and decided to not even look at our parcel for four !!! whole weeks. <conspiracy fun>I wonder if most of the customs officers were sent on holiday during the Obama EU visit, in order to make some roundabout statement about how, if only people would stop their valid fear of american food products and accept TTIP into their bodies and hearts, their parcels would arrive much faster. (No I obviously don’t really believe that, but it’s a fun idea)</conspiracy fun><figure id="attachment_598" style="width: 300px;" class="wp-caption alignright">
[<img class="size-medium wp-image-598" src="http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5217-300x264.jpg" alt="Successfull print with new board and settings" width="300" height="264" />](http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5217.jpg)<figcaption class="wp-caption-text">Successfull print with new board and settings</figcaption></figure>
Yesterday, the board finally arrived and got installed.
-Today, after some tests I was very pleased with the E0 stepper temperature staying at a comfortable 45°C now. However X and Y steppers were getting slightly hotter than before. (60°C after 1h of printing.) Of course we don’t want to lower the values too much as it would impact acceleration. After some fiddling, I went with what should be 0.275A less current for those steppers and set the values below in Configuration_adv.h.
+Today, after some tests I was very pleased with the E0 stepper temperature staying at a comfortable 45°C now. However X and Y steppers were getting slightly hotter than before. (60°C after 1h of printing.) Of course we don’t want to lower the values too much as it would impact acceleration. After some fiddling, I went with what should be 0.275A less current for those steppers and set the values below in Configuration_adv.h.
-After a bit of testing I’m not entirely convinced that all the settings reach the AD5206 correctly each and every time. Might be the display connected via long wires in a star configuration of the same SPI bus is a design issue. Likely a bit more testing is still required.
+After a bit of testing I’m not entirely convinced that all the settings reach the AD5206 correctly each and every time. Might be the display connected via long wires in a star configuration of the same SPI bus is a design issue. Likely a bit more testing is still required.
-Still, after 1.5 months we’re finally able to 3D print again. Celebrations and careful printing may commence :-)
+Still, after 1.5 months we’re finally able to 3D print again. Celebrations and careful printing may commence :-)
`// Motor Current setting for digital trimpot<br />
// Order: X,Y,Z,E0,E1 according to DIGIPOT_CHANNELS in pins.h<br />
- english
- realraum News
---
-Our shelf next to our electronics corner, aptly named TESLA, is getting a bit crowded. Luckily we have our own lasercutter. Why not make drawers? After today’s lasercutter workshop, nothing would be more obvious. So I made the beginning and created the first. The basic idea now is:
+Our shelf next to our electronics corner, aptly named TESLA, is getting a bit crowded. Luckily we have our own lasercutter. Why not make drawers? After today’s lasercutter workshop, nothing would be more obvious. So I made the beginning and created the first. The basic idea now is:
-> If everybody who doesn’t know where to put stuff any more, makes just one drawer, we will end up with a cool and individualized shelf.
+> If everybody who doesn’t know where to put stuff any more, makes just one drawer, we will end up with a cool and individualized shelf.
Everybody is invited to use the drawers in this [github repository](https://github.com/realraum/tesla_schubladen) to get started quickly and add their own designs.
-
+
* * *
-[<img class=" size-thumbnail wp-image-623 alignleft" src="http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5227-150x112.jpg" alt="wpid-dsc_5227.jpg" width="150" height="112" />](http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5227.jpg)In other News: H sponsored earphones, so people watching videos on Würfel, our pc directly connected to the room’s stereo, no longer need to play to an audience.
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+[<img class=" size-thumbnail wp-image-623 alignleft" src="http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5227-150x112.jpg" alt="wpid-dsc_5227.jpg" width="150" height="112" />](http://wp.realraum.at/wp-content/uploads/2016/05/wpid-dsc_5227.jpg)In other News: H sponsored earphones, so people watching videos on Würfel, our pc directly connected to the room’s stereo, no longer need to play to an audience.
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---
id: 633
-title: 'Debian on ZFS: It’s alive… It’s alive, it’s moving, it’s alive, it’s alive, IT’S ALIVE!'
+title: 'Debian on ZFS: It’s alive… It’s alive, it’s moving, it’s alive, it’s alive, IT’S ALIVE!'
date: 2016-05-22T19:48:48+00:00
author: nicoo
layout: post
I will probably be involved, in the coming weeks, in squashing ZFS bugs and making sure that Debian Stretch users get a smooth ZFS experience.
-Don’t hesitate to drop by and ask questions if you are curious about ZFS, or borrow the ZFS books I added to the library ;-)
+Don’t hesitate to drop by and ask questions if you are curious about ZFS, or borrow the ZFS books I added to the library ;-)
The whole install is described <a href="http://wp.realraum.at/wp-content/uploads/2016/05/root-on-zfs.txt" target="_blank">here</a> and on a <a title="[Pkg-zfsonlinux-devel] Root-on-ZFS on Stretch" href="https://lists.alioth.debian.org/pipermail/pkg-zfsonlinux-devel/2016-May/000658.html" target="_blank">post to the pkg-zfsonlinux-devel</a> mailing-list.
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[<img class="size-medium wp-image-651" src="http://wp.realraum.at/wp-content/uploads/2016/06/SMD-Solder-wild-231x300.jpg" alt="SMD solder before. Getting worse every time." width="231" height="300" />](http://wp.realraum.at/wp-content/uploads/2016/06/SMD-Solder-wild.jpg)<figcaption class="wp-caption-text">Fine solder wire before. Getting trangled up every time.</figcaption></figure> <figure id="attachment_650" style="width: 300px;" class="wp-caption alignleft">[<img class="size-medium wp-image-650" src="http://wp.realraum.at/wp-content/uploads/2016/06/SMD-Solder-holder-parts-300x225.jpg" alt="A nice set of simple to build parts." width="300" height="225" />](http://wp.realraum.at/wp-content/uploads/2016/06/SMD-Solder-holder-parts.jpg)<figcaption class="wp-caption-text">A nice set of simple to build parts.</figcaption></figure> <figure id="attachment_649" style="width: 300px;" class="wp-caption alignleft">[<img class="size-medium wp-image-649" src="http://wp.realraum.at/wp-content/uploads/2016/06/SMD-Solder-holder-finished-300x204.jpg" alt="10 minutes later: everything tidied up." width="300" height="204" />](http://wp.realraum.at/wp-content/uploads/2016/06/SMD-Solder-holder-finished.jpg)<figcaption class="wp-caption-text">10 minutes later: everything nice and tidy.</figcaption></figure>
-
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+
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- Projekte
- realraum News
---
-Not long after realraum moved to it’s current premises, we knew we wanted a curtain in the front windows, just like in the old realraum. Not only to better use the beamer during the day, but also to keep the room cooler in the summer and have a tiny bit more insulation in the winter. There was also hope of it dampening echos and loud noises.
+Not long after realraum moved to it’s current premises, we knew we wanted a curtain in the front windows, just like in the old realraum. Not only to better use the beamer during the day, but also to keep the room cooler in the summer and have a tiny bit more insulation in the winter. There was also hope of it dampening echos and loud noises.
That was about 2 years ago.<figure id="attachment_668" style="width: 300px;" class="wp-caption alignright">
[<img class="size-medium wp-image-672" src="http://wp.realraum.at/wp-content/uploads/2016/06/DSC_4829-300x172.jpg" alt="zip-ties a smooth sliding curtain not make" width="300" height="172" />](http://wp.realraum.at/wp-content/uploads/2016/06/DSC_4829.jpg)<figcaption class="wp-caption-text">zip-ties a smooth sliding curtain not makes</figcaption></figure>
-The first attempt had to go because the wood holding up the load was too thin. Instead of the planned U-cut to hold the pipe, an easy V-cut was made. The pressure exuded on the panel in direction of the fibres caused the wood to crack pretty early on. Then, instead of moving away the cable conduit (which later, turned out to be really easy to do), a daring constructions of wooden distance holders bridge was built in order to mount the pipe-holing-wood **on top **of the cable conduit. While not very tidy, the real problem here was that the screws were too long for the holes drilled. (Understand: were talking about a massive and solid concrete column holding up the whole house. Even with the right equipment that doesn’t drill easily). Consequently there was an air-gap between the column and the wood holding up the pipe. As we all remembered that day: screws hold stuff in place by way of static friction, i.e. pressing one material onto another e.g.. by pressing a piece of wood against a wall. They are not meant to withstand orthogonal forces and do not like to bear loads that way. Christian was the first to spot the air-gap. Exasperation and learning followed<figure id="attachment_671" style="width: 241px;" class="wp-caption alignright">
+The first attempt had to go because the wood holding up the load was too thin. Instead of the planned U-cut to hold the pipe, an easy V-cut was made. The pressure exuded on the panel in direction of the fibres caused the wood to crack pretty early on. Then, instead of moving away the cable conduit (which later, turned out to be really easy to do), a daring constructions of wooden distance holders bridge was built in order to mount the pipe-holing-wood **on top **of the cable conduit. While not very tidy, the real problem here was that the screws were too long for the holes drilled. (Understand: were talking about a massive and solid concrete column holding up the whole house. Even with the right equipment that doesn’t drill easily). Consequently there was an air-gap between the column and the wood holding up the pipe. As we all remembered that day: screws hold stuff in place by way of static friction, i.e. pressing one material onto another e.g.. by pressing a piece of wood against a wall. They are not meant to withstand orthogonal forces and do not like to bear loads that way. Christian was the first to spot the air-gap. Exasperation and learning followed<figure id="attachment_671" style="width: 241px;" class="wp-caption alignright">
[<img class="size-medium wp-image-671" src="http://wp.realraum.at/wp-content/uploads/2016/06/DSC_4800-241x300.jpg" alt="should brear a few hundred kg" width="241" height="300" />](http://wp.realraum.at/wp-content/uploads/2016/06/DSC_4800.jpg)<figcaption class="wp-caption-text">should bear a few hundred kg</figcaption></figure>
Finally, the pipe was not sufficiently secured against longitudinal movement. Meaning the direction in which you would pull when you move the curtain. Too much and the strings holding it in place might rip and crash everything down. Thankfully Christian also finally drilled holes at the ends and secured them with bolts across and through the pipe.
-Don’t exhale yet, we’re not done. The curtain still had to be mounted, and guess what. Curtainrings that fit a 42mm diameter pipe are really really hard to get. We tried to make due (thanks to Sandra for all the work), it’s really hard to move a curtain that is hanging on 150 tightly bound zip ties. Eventually we found a German shop that sells big metal rings at a surprisingly reasonable price and ordered right away. I don’t even want to explain why it then took 3 months for them to arrive.
+Don’t exhale yet, we’re not done. The curtain still had to be mounted, and guess what. Curtainrings that fit a 42mm diameter pipe are really really hard to get. We tried to make due (thanks to Sandra for all the work), it’s really hard to move a curtain that is hanging on 150 tightly bound zip ties. Eventually we found a German shop that sells big metal rings at a surprisingly reasonable price and ordered right away. I don’t even want to explain why it then took 3 months for them to arrive.
Yesterday, then, the long road had an end, the project finally got done. Our junior member David took up heart and down the pipes, replacing the zip-ties around the pipe with well moving (and sounding) metal rings.<figure id="attachment_673" style="width: 300px;" class="wp-caption alignright">
[<img class="size-medium wp-image-673" src="http://wp.realraum.at/wp-content/uploads/2016/06/DSC_4876-300x105.jpg" alt="no more sliding rods" width="300" height="105" />](http://wp.realraum.at/wp-content/uploads/2016/06/DSC_4876.jpg)<figcaption class="wp-caption-text">no more shifting rods</figcaption></figure>
-So end of story. Finally. Or is it? Because we also ordered clips to hang the curtain from it’s eyelets to the rings. We ordered new eyelets with a bigger inner diameter because the clips would not fit in the very small ones we had when Sasa and Sandra put them in. (Never believe the online-shopping product description). Right now the curtain and the clips/rings are still connected with zip-ties. So the question remains… do we still care? Or did anybody even read all the way down?
\ No newline at end of file
+So end of story. Finally. Or is it? Because we also ordered clips to hang the curtain from it’s eyelets to the rings. We ordered new eyelets with a bigger inner diameter because the clips would not fit in the very small ones we had when Sasa and Sandra put them in. (Never believe the online-shopping product description). Right now the curtain and the clips/rings are still connected with zip-ties. So the question remains… do we still care? Or did anybody even read all the way down?
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* Now features a big flat space that will happily hold your RFID access card, token or whole wallet. No more fumbling and trying to get a card to stick to the side of the box
* Dedicated holder for USB-sticks, the laser-cutter key and the focus distance measurement spacers.
- * Dead-Person-Button – remaining time indicator lights are more diffused by the cover and thus more muted.
+ * Dead-Person-Button – remaining time indicator lights are more diffused by the cover and thus more muted.
-The basic logic remains the same. Once you went through the laser-cutter introduction and got access, just put your RFID token on top of the reader. The beep and the green bar indicates the laser is now hot and you can start cutting. Press the DeadPersonButton while the bar is still green to indicate you are watching and realraum hasn’t burned down yet. Remove the card when you’re done. Beeps and blinks will indicate that laser is now being disabled.
+The basic logic remains the same. Once you went through the laser-cutter introduction and got access, just put your RFID token on top of the reader. The beep and the green bar indicates the laser is now hot and you can start cutting. Press the DeadPersonButton while the bar is still green to indicate you are watching and realraum hasn’t burned down yet. Remove the card when you’re done. Beeps and blinks will indicate that laser is now being disabled.
See the [wiki for more](https://realraum.at/wiki/doku.php?id=lasercutter:anleitungen_und_materialdaten).
\ No newline at end of file
**GoodEnoughCNC Family**: is a three axis system used in 3D Printer projects like the Troublemaker or cheap CNC mills or even a DIY plasma cutter.
-
\ No newline at end of file
+
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- creative
- realraum
---
-„Schnell, schnell! Wir brauchen noch ein wunderbares und nicht käuflich erwerbbares Geschenk für Mama, Papa, Opa, Oma und meine 2 Geschwister. Alles individuell auf die jeweilige Persönlichkeit zugeschnitten.“ …tjaaa, da wird’s meistens schon etwas eng mit der Geschenks Auswahl.
+„Schnell, schnell! Wir brauchen noch ein wunderbares und nicht käuflich erwerbbares Geschenk für Mama, Papa, Opa, Oma und meine 2 Geschwister. Alles individuell auf die jeweilige Persönlichkeit zugeschnitten.“ …tjaaa, da wird’s meistens schon etwas eng mit der Geschenks Auswahl.
Aber zum Glück sind viele Leute kreativ und können sich dafür etwas ausdenken. „Heureka!“, ruft dann der erhellte Geist und verweist einem auf den Vorschlag, man könne doch kleine Skulpturen der jeweiligen Lieblingstiere schenken (ich selber sammle seit Kindesalter allerlei Figuren von Schildkröten). „Super Idee, Gehirn. Aber wie soll ich das anstellen? Wie soll ich meine Idee in die Praxis umsetzen?“
---
id: 805
-title: 'RetroRaumParty – Oldskool strikes back'
+title: 'RetroRaumParty – Oldskool strikes back'
date: 2016-12-06T13:25:24+00:00
author: xro
layout: post
---
### This weekend, realraum is going retro again.
-[Saturday the 10th, starting at 17:00](https://grical.realraum.at/e/show/876/), we will have this year’s last retrogaming and party evening.
+[Saturday the 10th, starting at 17:00](https://grical.realraum.at/e/show/876/), we will have this year’s last retrogaming and party evening.
Old-school hardware, games and demos with important necessities like feuerzangenbowle.
- german
- realraum News
---
-Am Samstag, den 10. Dezember 2016 fand die Gründungsversammlung des Vereins “World Privacy and Identity Association (WPIA)” bei uns im realraum in Graz statt.
+Am Samstag, den 10. Dezember 2016 fand die Gründungsversammlung des Vereins “World Privacy and Identity Association (WPIA)” bei uns im realraum in Graz statt.
#### Die WPIA macht es sich zur Aufgabe
BTW: schon mal im realraum 3D gedruckt oder lasergecuttet oder einen Vortrag besucht?
-Dann gib uns zwei deiner **Stimmen** beim **Bürgerinnenbudget**, für mehr und weiter “realraum”!
+Dann gib uns zwei deiner **Stimmen** beim **Bürgerinnenbudget**, für mehr und weiter “realraum”!
Hier: [realraum als Ganzes](https://bürgerinnenbudget.at/campaign.php?id=20) und Hier: [OLGA im Speziellen](https://bürgerinnenbudget.at/campaign.php?id=15)
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---
id: 831
-title: 'the 20 cent “paperfuge” – Biohacking ist ein Kinderspiel'
+title: 'the 20 cent “paperfuge” – Biohacking ist ein Kinderspiel'
date: 2017-02-05T01:47:00+00:00
author: Daniel D
layout: post
- OLGA
- Projekte
---
-Das Jahr 2017 fängt schon cool an. Im Jänner machte ein Video einen viralen Rundgang durch die Science-Szene und preiste eine “centrifuge for 20 cent”an….ich so, whaaaat? Was ich anfangs für einen Hoax hielt stellte sich als eine ziemlich geniale Idee heraus.
+Das Jahr 2017 fängt schon cool an. Im Jänner machte ein Video einen viralen Rundgang durch die Science-Szene und preiste eine “centrifuge for 20 cent”an….ich so, whaaaat? Was ich anfangs für einen Hoax hielt stellte sich als eine ziemlich geniale Idee heraus.
-Wer von euch kennt das Kinderspiel wo man mit einem Knopf und einer Schnurr mit bisschen Geschick zum Surren brachte? Ich weiß noch, dass ich es im Kindergarten mal probiert habe und auch meine Großeltern noch mit diesem Spiel aufgewachsen sind,…man brauchte immerhin nur einen Knopf und ein Stück Faden. Man hält die Schnurr an beiden Enden mit den Händen fest während sich in der Mitte der Knopf drehte, sofern man im richtigen Moment an den Enden zieht.
+Wer von euch kennt das Kinderspiel wo man mit einem Knopf und einer Schnurr mit bisschen Geschick zum Surren brachte? Ich weiß noch, dass ich es im Kindergarten mal probiert habe und auch meine Großeltern noch mit diesem Spiel aufgewachsen sind,…man brauchte immerhin nur einen Knopf und ein Stück Faden. Man hält die Schnurr an beiden Enden mit den Händen fest während sich in der Mitte der Knopf drehte, sofern man im richtigen Moment an den Enden zieht.
-Bioengineers aus Stanford haben dieses Kinderspiel weiterentwickelt und daraus die “Paperfuge” gebastelt. Ein Hand betriebenes Gerät mit einer Scheibe anstatt dem Knopf, welches Leistungen von 120.000 rpm (rounds per minutes) schafft,…die übliche Tischzentrifuge im Labor schafft 14.000 rpm.
+Bioengineers aus Stanford haben dieses Kinderspiel weiterentwickelt und daraus die “Paperfuge” gebastelt. Ein Hand betriebenes Gerät mit einer Scheibe anstatt dem Knopf, welches Leistungen von 120.000 rpm (rounds per minutes) schafft,…die übliche Tischzentrifuge im Labor schafft 14.000 rpm.
-
+
Wahnsinn, eine tolle Idee, denn viele schnelle Analysen über Infektionskrankheiten benötigen Zentrifugen als Arbeitsschritte, wie z.B. die Trennung von roten Blutkörper und Serum. Aber was tun, wenn man weder Strom noch die passende Ausrüstung dafür besitzt? Diese Pagerfuge könnte dafür die Lösung sein.
-
+
Welche weiteren Einsatzmöglichkeiten, außer Blutproben, diese revolutionäre Erfindung noch hat möchten wir im OLGA heraus finden und haben uns selber dieses Gerät gebastelt.
[<img class="alignnone size-medium wp-image-832" src="http://wp.realraum.at/wp-content/uploads/2017/02/Unbenannt-300x245.gif" alt="pagefuge" width="300" height="245" />](http://wp.realraum.at/wp-content/uploads/2017/02/Unbenannt.gif)
-
+
-
+
-Erste Versuche mit einer Bakterien Zellsuspension sind vielversprechend. Nach ca. 5 Minuten “spielen” wurden die Zellen am Boden eines 0,2 mL Reaktionsgefäßes pelletiert.
+Erste Versuche mit einer Bakterien Zellsuspension sind vielversprechend. Nach ca. 5 Minuten “spielen” wurden die Zellen am Boden eines 0,2 mL Reaktionsgefäßes pelletiert.
[<img class="alignnone size-medium wp-image-833" src="http://wp.realraum.at/wp-content/uploads/2017/02/IMG_20170204_224530-225x300.gif" alt="cell pellete" width="225" height="300" />](http://wp.realraum.at/wp-content/uploads/2017/02/IMG_20170204_224530.gif)
-Neben unterschiedlichen Modellen, Formen und Größen kann man noch das zu zentrifugierende Volumen als auch die Art der Probe versuchen zu variieren,…es gibt also noch viel auszuprobieren. Im Labor haben wir viele Arbeiten, welche Zentrifugationsschritte benötigen (DNA-Isolierung, Proteingewinnung, schlichte Abtrennung von Zellen aus Lösungen, usw.) und ich kann mir gut vorstellen, dass, wenn die Paperfuge sich experimentell als qualitative Alternative zur üblichen Tischzentrifuge heraus stellt, dies für viele Analysen-Labore in Entwicklungsländern eine günstige, Strom-unabhängige und schnelle Hilfe darstellen kann. Das Potenzial ist hoch, genau wie die Motivation :D
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+Neben unterschiedlichen Modellen, Formen und Größen kann man noch das zu zentrifugierende Volumen als auch die Art der Probe versuchen zu variieren,…es gibt also noch viel auszuprobieren. Im Labor haben wir viele Arbeiten, welche Zentrifugationsschritte benötigen (DNA-Isolierung, Proteingewinnung, schlichte Abtrennung von Zellen aus Lösungen, usw.) und ich kann mir gut vorstellen, dass, wenn die Paperfuge sich experimentell als qualitative Alternative zur üblichen Tischzentrifuge heraus stellt, dies für viele Analysen-Labore in Entwicklungsländern eine günstige, Strom-unabhängige und schnelle Hilfe darstellen kann. Das Potenzial ist hoch, genau wie die Motivation :D
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---
id: 843
-title: 'Einladung zur Party – 10 years realraum in base 10'
+title: 'Einladung zur Party – 10 years realraum in base 10'
date: 2017-03-04T21:21:23+00:00
author: xro
layout: post
Save the Date: **2017-03-18**
-Come party with us! Find out more ….
+Come party with us! Find out more ….
<pre><span style="color: #008000;">$ <a href="http://10.r3.at">telnet 10.r3.at</a>\r
\r
It can arbitrarily mix or split drops of various chemicals or from various samples. Making it the ultimate microfluidic chemistry or molecular biology lab.
-Or one can just use it to … you know … play pacman with colored drops of water.
+Or one can just use it to … you know … play pacman with colored drops of water.
Whatever the usecase, watching the tiny droplets zoom across the foliated surface, moved by an invisible force is quite awesome to watch. Science seldom looks so cool!
\ No newline at end of file
- german
- realraum News
---
-Etwas “grünes” zeigt sich im Schaufenster vor’m r3. Was hat es mit diesem “eye-catcher” wohl auf sich?
+Etwas “grünes” zeigt sich im Schaufenster vor’m r3. Was hat es mit diesem “eye-catcher” wohl auf sich?
[<img src="http://wp.realraum.at/wp-content/uploads/2017/04/IMG_20170428_1422381-225x300.jpg" alt="dav" width="225" height="300" class="alignnone size-medium wp-image-861" />](http://wp.realraum.at/wp-content/uploads/2017/04/IMG_20170428_1422381.jpg)
-Viele, die mich kennen, wissen, dass ich ein Freund von Kräutern bin. Sowohl im botanischen Sinne, als auch in der Küche in Form von Gewürzen und Tees. Umso mehr freute ich mich über ein Geschenk meines Vaters, der mir ein ungebundenes Buch seines Großvaters zukommen lies. Dieses Werk mit dem Titel “Heimische Kräuter und Pilze, eine reizende Bildersammlung” (gewidmet einer namenhaften Feigenkaffee-Fabrik in Wien) ist wahrscheinlich zu Beginn des 20. Jhd. entstanden, im Buch sind leider keine Datumsangaben zu finden und im Internet finden sich neue Auflagen um 1925 herum.
+Viele, die mich kennen, wissen, dass ich ein Freund von Kräutern bin. Sowohl im botanischen Sinne, als auch in der Küche in Form von Gewürzen und Tees. Umso mehr freute ich mich über ein Geschenk meines Vaters, der mir ein ungebundenes Buch seines Großvaters zukommen lies. Dieses Werk mit dem Titel “Heimische Kräuter und Pilze, eine reizende Bildersammlung” (gewidmet einer namenhaften Feigenkaffee-Fabrik in Wien) ist wahrscheinlich zu Beginn des 20. Jhd. entstanden, im Buch sind leider keine Datumsangaben zu finden und im Internet finden sich neue Auflagen um 1925 herum.
-Die vergilbten Seiten sind schon etwas brüchig, dennoch waren die Hand gemalten Abbildungen und der dazu gehörige Text in altdeutscher Schrift noch gut zu erkennen. Es ist äußerst interessant zu lesen (Altdeutsch ist nicht so schwer wie es anfangs aussieht ;) ), wie in damaligen Zeiten das Wissen in schriftlicher Form zusammengefasst und niedergeschrieben wurde, auch wenn es sich aus heutiger Sicht nicht um besonders detaillierte oder umfangreiche Arbeiten handelte. Auch sei der Wahrheitsgrad dieser “Fakten” anzuzweifeln, aber dies sei natürlich bei sämtlichen historischen Wissen der Fall.
+Die vergilbten Seiten sind schon etwas brüchig, dennoch waren die Hand gemalten Abbildungen und der dazu gehörige Text in altdeutscher Schrift noch gut zu erkennen. Es ist äußerst interessant zu lesen (Altdeutsch ist nicht so schwer wie es anfangs aussieht ;) ), wie in damaligen Zeiten das Wissen in schriftlicher Form zusammengefasst und niedergeschrieben wurde, auch wenn es sich aus heutiger Sicht nicht um besonders detaillierte oder umfangreiche Arbeiten handelte. Auch sei der Wahrheitsgrad dieser “Fakten” anzuzweifeln, aber dies sei natürlich bei sämtlichen historischen Wissen der Fall.
Doch geht auch dieses Wissen aus einer Reihe wissenschaftlicher Richtlinien hervor. Die binäre Nomenklatur in Latein, welche vom schwedischen Naturforscher Carl von Linné seit dem 18. Jhd. eingeführt wurde, ist ein wichtiges Prinzip und die Grundlage der botanischen (und zoologischen) Taxonomie und weiters der Systematik. Dadurch sind Untersuchungsobjekte für ForscherInnen eindeutig deklariert. Auch sind die Beschreibungen der diverser Erkennungsmerkmale und Eigenschaften dieser Pflanzen für die Wissenschaft ein wichtiges Gut, und wer würde heute noch wissen, dass Gänseblümchen weiße Blätter haben, wenn es nicht jemand mal so beschrieben hätte?
-Gerne schmunzel ich über die “mögliche medizinische und pharmazeutische Wirkung”, die manchen Pflanzen her aufgrund empirischer Erfahrung, aber auch wegen vorhandenen Aberglauben, nachgesagt wurden. DASS viele Kräuter, Wurzeln oder Blüten (oder Pflanzen allgemein) gewisse Auswirkungen auf tierische Körper haben war schon damals nicht zu leugnen, allerdings haben sich die wissenschaftlichen Disziplinen, deren Untersuchungsmethoden und die daraus resultierenden Erkenntnisse stark verändert.
+Gerne schmunzel ich über die “mögliche medizinische und pharmazeutische Wirkung”, die manchen Pflanzen her aufgrund empirischer Erfahrung, aber auch wegen vorhandenen Aberglauben, nachgesagt wurden. DASS viele Kräuter, Wurzeln oder Blüten (oder Pflanzen allgemein) gewisse Auswirkungen auf tierische Körper haben war schon damals nicht zu leugnen, allerdings haben sich die wissenschaftlichen Disziplinen, deren Untersuchungsmethoden und die daraus resultierenden Erkenntnisse stark verändert.
[<img src="http://wp.realraum.at/wp-content/uploads/2017/04/IMG_20170428_1422551-225x300.jpg" alt="dav" width="225" height="300" class="alignnone size-medium wp-image-862" />](http://wp.realraum.at/wp-content/uploads/2017/04/IMG_20170428_1422551.jpg)
-Um diesen historischen Schatz, dieses Wissen und die Vorstellungen damaliger KräuterliebhaberInnen auch noch für weitere Generationen zu bewahren, habe ich die Seiten mit der uns heute zugänglichen Technologie “konserviert” —> üblicher Scanner und digital abgespeichert :P ), denn auch Bio-/Hacker sollten den Wert auf die Wissensvermittlung (open source/ open acces) legen, damit Andere von unseren Erkenntnissen profitieren können. Die mit Fakten argumentierte Dokumentation ist fundamental für die Erhaltung der Wissenschaft.
+Um diesen historischen Schatz, dieses Wissen und die Vorstellungen damaliger KräuterliebhaberInnen auch noch für weitere Generationen zu bewahren, habe ich die Seiten mit der uns heute zugänglichen Technologie “konserviert” —> üblicher Scanner und digital abgespeichert :P ), denn auch Bio-/Hacker sollten den Wert auf die Wissensvermittlung (open source/ open acces) legen, damit Andere von unseren Erkenntnissen profitieren können. Die mit Fakten argumentierte Dokumentation ist fundamental für die Erhaltung der Wissenschaft.
-Und wer weiß, vielleicht hängen im Jahre 2500 auch ein paar Seiten über “Linux, leicht gemacht” in Schaufenstern von Future-Hackerspaces und wundern sich über diese “antiken Programmiermethoden” ;)
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+Und wer weiß, vielleicht hängen im Jahre 2500 auch ein paar Seiten über “Linux, leicht gemacht” in Schaufenstern von Future-Hackerspaces und wundern sich über diese “antiken Programmiermethoden” ;)
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<pre>____ _ _____ _ _ _____ ____ \r
/ ___| ___ ___| | _| ____|_ __ __| | / |___ | |___ \ \r
| | _ / _ \/ _ \ |/ / _| | '_ \ / _` | | | / /____ __) |\r
- | |_| | __/ __/ <| |___| | | | (_| | | | / /_____/ __/ \r
+ | |_| | __/ __/ <| |___| | | | (_| | | | / /_____/ __/ \r
\____|\___|\___|_|\_\_____|_| |_|\__,_| |_|/_/ |_____|\r
\r
\r
Der Ablauf wird wie folgt sein:
-– Einführung in das Thema mit einer kurzen Präsentation und einem Video
+– Einführung in das Thema mit einer kurzen Präsentation und einem Video
-– Anschauungsobjekte vor Ort (mögliche Verkostung)
+– Anschauungsobjekte vor Ort (mögliche Verkostung)
-– Problemstellungen und Ziele der Projekte
+– Problemstellungen und Ziele der Projekte
-– Brainstorming
+– Brainstorming
Im Anschluss gemeinsames Glühweintrinken in der Stadt für alle die Lust und Laune haben. Es gibt zu diesem Thema sehr viel zu besprechen und ich bin unter anderem gespannt auf euren Input. Ich hoffe euch ein wenig neugierig gemacht zu haben und freue mich auf einen regen Austausch. Vor allem würde ich mich freuen, wenn Leute aus verschiedenen Sparten kommen, damit man unterschiedliche Meinungen hat. ;)
* den Laser-Dead-Person Button der regelmäßig betätigt werden muss, besser und deutlicher beschriftet. Außerdem die Wiki Beschreibung für den Laser aktualisiert.
* Ein LED Außen-Flutlicht montiert, das jetzt unser LOGO erhellt!
* an einem Printer-Server-Beaglebone-Image für unseren Laserjet 8000 gearbeitet
- * OLGA Treffen mit Einführungstalk in DDD’s Schleimpilzprojekt.
+ * OLGA Treffen mit Einführungstalk in DDD’s Schleimpilzprojekt.
* Basteln einer Box für eine LED Wort Uhr
* Basteln an Kisteneinsätzen für die Wurmfarm
* Etwas aufgeräumt
Years ago we got some horribly expensive foil needed to engrave metal using our laser-cutter. Today is, as far as I know, our first attempt to actually use it.
-People always seem to search for a lighter, but then forget to put them back. As a result, even the safely stored ones can never be found when a Bunsen needs to be lit (which we actually have an Piezo for that the evil smokers don’t want to steal) or a flame is needed for some project.
+People always seem to search for a lighter, but then forget to put them back. As a result, even the safely stored ones can never be found when a Bunsen needs to be lit (which we actually have an Piezo for that the evil smokers don’t want to steal) or a flame is needed for some project.
Reason enough to make a big deal out of nothing and sponsor an old but sturdy quality Zippo and mark it **permanently** with the r3 Logo!
Finished is the engraved lighter. Not so bad for a first attempt, even though the result could be even nicer. Laser-speed was set to 10mm/s and power to 100% of the 60W.
-Not to self for next time: don’t trust the red positioning dot without checking if it still **corresponds** to the actual laser position. The graphic was offset by a few mm. Still worked out though.
+Not to self for next time: don’t trust the red positioning dot without checking if it still **corresponds** to the actual laser position. The graphic was offset by a few mm. Still worked out though.
Works! The final working result is now stored in the drawer in Masha. As engraved on the lighter. :-) The lighter fluid is right across from it on the shelf.
- realraum News
- Veranstaltungen
---
-
+
Was machen MikrobiologInnen, wenn sie gerade nicht im Uni Labor stehen?
[<img class="alignnone wp-image-966" src="http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0340-300x169.jpg" alt="dsc_0340" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0340.jpg)[<img class="alignnone size-medium wp-image-965" src="http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0339-300x169.jpg" alt="dsc_0339" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0339.jpg)
-
+
Um solche Projekte überhaupt durchführen zu können müssen aber erst einmal die Arbeitsmaterialen vorbereitet werden. Damit die Bakterien nicht hungern wurde vergangenen Sonntag Agar mit verschiedenen Nährmedien vermischt und in Platten gegossen.<figure id="attachment_967" style="width: 300px;" class="wp-caption alignnone">
[<img class="size-medium wp-image-967" src="http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0342-300x169.jpg" alt="steriles Arbeiten mti dem Brenner" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0342.jpg)<figcaption class="wp-caption-text">steriles Arbeiten mti dem Brenner</figcaption></figure>
-
+
-Auch Bakterien essen gerne Suppe – Rindssuppe als Vollmedium
+Auch Bakterien essen gerne Suppe – Rindssuppe als Vollmedium
[<img class="wp-image-971 size-medium" src="http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0344-e1521576254996-169x300.jpg" alt="Suppen Agar" width="169" height="300" />](http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0344.jpg)
-
+
-Ihr sollt wachsen… aber du nicht! – MacConkey als Selektivmedium
+Ihr sollt wachsen… aber du nicht! – MacConkey als Selektivmedium
[<img class="size-medium wp-image-964" src="http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0336-300x169.jpg" alt="MacConkey Agar " width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0336.jpg)
-
+
Das Ergebnis kann sich auch farblich sehen lassen
[<img class=" wp-image-968" src="http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0343-300x169.jpg" alt="Agarplatten fertig gegossen" width="261" height="147" />](http://wp.realraum.at/wp-content/uploads/2018/03/DSC_0343.jpg)
-
+
Gut vorbereitet starten so nun wieder neue Projekte über die im Laufe der nächsten Wochen noch mehr berichtet wird.
[<img class="alignnone size-medium wp-image-1023" src="http://wp.realraum.at/wp-content/uploads/2018/06/DSC_0501-300x169.jpg" alt="Antibiothikatests" width="300" height="169" />](http://wp.realraum.at/wp-content/uploads/2018/06/DSC_0501.jpg)
-
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+
\ No newline at end of file
#### How to NOT use a container?
-Sometimes (web)developers see the Linux systems that run their (web)applications as a house of card that they better not touch or they don’t want to deal with security and quality policies of various Linux distributions. The reason being, that if it works for them, it should work just like that for the end-user. Conveniently containers now allow us to package an applications plus the whole linux ecosystem around it. Unfortunately this just makes everything worse. It makes it harder to actually secure and separate applications from each other while providing a false semblance of security.
+Sometimes (web)developers see the Linux systems that run their (web)applications as a house of card that they better not touch or they don’t want to deal with security and quality policies of various Linux distributions. The reason being, that if it works for them, it should work just like that for the end-user. Conveniently containers now allow us to package an applications plus the whole linux ecosystem around it. Unfortunately this just makes everything worse. It makes it harder to actually secure and separate applications from each other while providing a false semblance of security.
-### What is chroot and what can and can’t it do?
+### What is chroot and what can and can’t it do?
A chroot is a root file system (e.g. a whole Linux distribution) inside your host root file system in which a program runs.
-The idea being that a chrooted application can not access any file outside it’s chroot.
+The idea being that a chrooted application can not access any file outside it’s chroot.
Obviously then you have to provide (duplicate) all the tools and applications that will be needed inside the chroot filesystem.
### Links to some great introduction to cgroups I came across
-The RedHat-blog has some very good hands-on introduction articles on cgroups called “World domination with Cgroups” I suggest you read them:
+The RedHat-blog has some very good hands-on introduction articles on cgroups called “World domination with Cgroups” I suggest you read them:
* <p class="hero1-title">
- <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-1-cgroup-basics">Part 1 – Cgroup basics</a>
+ <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-1-cgroup-basics">Part 1 – Cgroup basics</a>
</p>
* <p class="hero1-title">
- <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-2-turning-knobs">Part 2 – Turning Knobs</a>
+ <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-2-turning-knobs">Part 2 – Turning Knobs</a>
</p>
* <p class="hero1-title">
- <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-3-thanks-memories">Part 3 – Thanks for the memories</a>
+ <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-3-thanks-memories">Part 3 – Thanks for the memories</a>
</p>
* <p class="hero1-title">
- <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-4-all-ios">Part 4 – All the I/Os</a>
+ <a href="https://www.redhat.com/en/about/blog/world-domination-cgroups-part-4-all-ios">Part 4 – All the I/Os</a>
</p>
-
+
### Restrict services using systemd unit files
-Sometimes you just want to contain a single executable. In that case you might not truly need a full machine, you can chroot a service and restrict it just using it’s .service file.
+Sometimes you just want to contain a single executable. In that case you might not truly need a full machine, you can chroot a service and restrict it just using it’s .service file.
My favorite: <tt>SystemCallFilter</tt>! it filters what syscalls a process is allowed to use.
-e.g. you could run a program or bunch of programs with _strace -c — <cmd>_ and put the list of syscalls at the end in the systemd unit file.
+e.g. you could run a program or bunch of programs with _strace -c — <cmd>_ and put the list of syscalls at the end in the systemd unit file.
Other extremely useful directives you should read up on:
AmbientCapabilities=\r
CapabilityBoundingSet=</pre>
-
+
chroot:
### What about containers as virtual machines replacement? Enter systemd-nspawn
-systemd-nspawn is systemd’s tool to run containers like you would a virtual machine. Thus ‘nspawn containers are called “machines” and are managed with the tool <tt>machinectl</tt>. Actually machinectl interfaces not only with systemd-nspawn but also rkt, docker, libvirt and others, thus providing a convenient place to manage all your running virtualisations at once.
+systemd-nspawn is systemd’s tool to run containers like you would a virtual machine. Thus ‘nspawn containers are called “machines” and are managed with the tool <tt>machinectl</tt>. Actually machinectl interfaces not only with systemd-nspawn but also rkt, docker, libvirt and others, thus providing a convenient place to manage all your running virtualisations at once.
### Putting our application into an container.
---
Heute hatten wir einen kurzen Aha-und-WTF-Moment beim Basteln eines WIFI-fähigen Brandmelders (ESP8266 der im Alarmfall von der Brandmelderbatterie bootet und eine SMS schickt):
-Wir versorgten den Melder mit einem Labornetzteil (9V) und maßen Signale mit dem Oszilloskop. Als wir den Prüfspitzen-GND mit GND der Schaltung verbanden… funkte es kurz! Wie kann dass denn sein?
+Wir versorgten den Melder mit einem Labornetzteil (9V) und maßen Signale mit dem Oszilloskop. Als wir den Prüfspitzen-GND mit GND der Schaltung verbanden… funkte es kurz! Wie kann dass denn sein?
Daher Multimeter her und mal durch messen! Mhhh, da liegen 9V zwischen dem Minuspol des Labornetzteils und dem Oszi-GND bzw der Oszi-ERDE. WTF^2?
-Eine oberflächliche Untersuchung des Labornetzteil ließ gleich vermuten dass die Ursache hier zu suchen sei. Darin scheppert’s! Schraubenzieher her und siehe da, jemandem sind aus der darüber stehenden blauen Sortierbox Unterlegscheiben gefallen und zwar genau in die Lüftungsschlitze des Labornetzteils. Diese haben im Netzteil einen Kurzschluss zwischen DC+ und dem Gehäuse verursacht. Das Gehäuse ist natürlich geerdet, so war DC+5 über die Erdung des Stromnetz mit der Erde des Oszilloskop kurzgeschlossen.
+Eine oberflächliche Untersuchung des Labornetzteil ließ gleich vermuten dass die Ursache hier zu suchen sei. Darin scheppert’s! Schraubenzieher her und siehe da, jemandem sind aus der darüber stehenden blauen Sortierbox Unterlegscheiben gefallen und zwar genau in die Lüftungsschlitze des Labornetzteils. Diese haben im Netzteil einen Kurzschluss zwischen DC+ und dem Gehäuse verursacht. Das Gehäuse ist natürlich geerdet, so war DC+5 über die Erdung des Stromnetz mit der Erde des Oszilloskop kurzgeschlossen.
Das erklärte auch die anfänglichen Messergebnisse. :-)
- Projekte
- realraum News
---
-Read about Flocx’s current project, a battery-saving WIFI+MQTT-enabling cheap smoke-detector here: <https://blog.flo.cx/2018/08/ikea-diy-smart-smoke-detector/>
+Read about Flocx’s current project, a battery-saving WIFI+MQTT-enabling cheap smoke-detector here: <https://blog.flo.cx/2018/08/ikea-diy-smart-smoke-detector/>
<img class="alignnone wp-image-1079 size-full" src="http://wp.realraum.at/wp-content/uploads/2018/08/wpid-dsc_8087-1743742083.jpg" alt="" width="3000" height="1688" />
You can find my [firmware on GitHub](https://github.com/btittelbach/sming_smokedetector).
-[Read about Flocx’s current project, a battery-saving WIFI+MQTT-enabling cheap smoke-detector here: <https://blog.flo.cx/2018/08/ikea-diy-smart-smoke-detector/>
+[Read about Flocx’s current project, a battery-saving WIFI+MQTT-enabling cheap smoke-detector here: <https://blog.flo.cx/2018/08/ikea-diy-smart-smoke-detector/>
<img class="alignnone wp-image-1079 size-full" src="http://wp.realraum.at/wp-content/uploads/2018/08/wpid-dsc_8087-1743742083.jpg" alt="" width="3000" height="1688" />
- Projekte
- realraum News
---
-As a hackerspace we regularly host user-groups and irregularly host talks and workshops and all of them need to use our beamer. Quite a downer then, that our beamer’s HDMI and DVI Input stopped working with newer laptop graphic cards. Especially since VGA started having it’s own issues: Dark slides transmitted over our long VGA cable cause the beamer to decide input has disappeared and switch the input off.
+As a hackerspace we regularly host user-groups and irregularly host talks and workshops and all of them need to use our beamer. Quite a downer then, that our beamer’s HDMI and DVI Input stopped working with newer laptop graphic cards. Especially since VGA started having it’s own issues: Dark slides transmitted over our long VGA cable cause the beamer to decide input has disappeared and switch the input off.
-A look at the kernel messages with `dmesg` made the source of the problem immediately apparent. The CRC of the [EDID](https://en.wikipedia.org/wiki/Extended_Display_Identification_Data "EDID") the beamer sends over the HDMI/DVI cable is wrong. (Interestingly enough, the beamer EDID sent over VGA is fine). As a result, newer laptops decide that no HDMI/DVI cable has actually been attached. Nothing you can do. Certainly not with any user tools like `xrandr` or any Xorg driver or kernel module options. Believe us, we tried it all. (Even if a software solution would have been possible, it would certainly not have been convenient to hack each new speaker’s laptop and OS of choice on the spot.)
+A look at the kernel messages with `dmesg` made the source of the problem immediately apparent. The CRC of the [EDID](https://en.wikipedia.org/wiki/Extended_Display_Identification_Data "EDID") the beamer sends over the HDMI/DVI cable is wrong. (Interestingly enough, the beamer EDID sent over VGA is fine). As a result, newer laptops decide that no HDMI/DVI cable has actually been attached. Nothing you can do. Certainly not with any user tools like `xrandr` or any Xorg driver or kernel module options. Believe us, we tried it all. (Even if a software solution would have been possible, it would certainly not have been convenient to hack each new speaker’s laptop and OS of choice on the spot.)
This needed fixing!
<!--more-->
-Rather than risking our beamer in a hunt for its EDID flash, which we might be able to re-flash, we decided to man-in-the-middle the cable and spoof the EDID sent by the beamer. A couple of [ready-made solutions can be had on Amazon](https://www.amazon.de/s/ref=nb_sb_noss?&field-keywords=hdmi+edid&rh=i%3Aaps%2Ck%3Ahdmi+edid) for anything from 30€ to 150€ but only [one supports our beamers native resolution of 1280×800 and costs a whooping 75€](https://www.amazon.de/dp/B01FUJKUJG/).
+Rather than risking our beamer in a hunt for its EDID flash, which we might be able to re-flash, we decided to man-in-the-middle the cable and spoof the EDID sent by the beamer. A couple of [ready-made solutions can be had on Amazon](https://www.amazon.de/s/ref=nb_sb_noss?&field-keywords=hdmi+edid&rh=i%3Aaps%2Ck%3Ahdmi+edid) for anything from 30€ to 150€ but only [one supports our beamers native resolution of 1280×800 and costs a whooping 75€](https://www.amazon.de/dp/B01FUJKUJG/).
-We’re hackers however, and so built our own solution for <10€ from materials already lying around.
+We’re hackers however, and so built our own solution for <10€ from materials already lying around.
-First we cut open a HDMI extension cable extracted the DDC wires as well as HDMI 5V and GND. DDC just uses I2C so in theory we can use any µC, connect the DDC wires leading to the host device (laptop) it’s SDA/SCL pins, make it answer requests for EDID information and be done.
+First we cut open a HDMI extension cable extracted the DDC wires as well as HDMI 5V and GND. DDC just uses I2C so in theory we can use any µC, connect the DDC wires leading to the host device (laptop) it’s SDA/SCL pins, make it answer requests for EDID information and be done.
There is even a ready made [firmware project for an AVR ATtiny on GitHub](https://github.com/ericwazhung/avr-edid-spoofer) which allowed us to get started right away and save a lot of time. (Beware the code is a bit crappy, can only send a single EDID and has problems with high-byte EDIDs, aka almost every modern EDID)
[<img class="aligncenter size-large wp-image-1102" src="http://wp.realraum.at/wp-content/uploads/2018/09/edid_spoofing_cable.svg-982x1024.png" alt="edid_spoofing_cable-svg" width="750" height="782" />](http://wp.realraum.at/wp-content/uploads/2018/09/edid_spoofing_cable.svg.png)
-We used an ArduinoNanoV3 as a programmer for the ATtiny and after fighting the firmware a bit (high-bytes), managed to find an EDID setting that would both compile and result int a laptop-hdmi-signal that was accepted by our beamer. It’s a weird 71.9 Hz signal, but it works reliably at native 1280×800. The lack of additional EDID modes might even be a boon, since it prevents laptops with different aspect ratios to autoselect a resolution that would yield crappy results.
+We used an ArduinoNanoV3 as a programmer for the ATtiny and after fighting the firmware a bit (high-bytes), managed to find an EDID setting that would both compile and result int a laptop-hdmi-signal that was accepted by our beamer. It’s a weird 71.9 Hz signal, but it works reliably at native 1280×800. The lack of additional EDID modes might even be a boon, since it prevents laptops with different aspect ratios to autoselect a resolution that would yield crappy results.
[<img class="aligncenter size-large wp-image-1099" src="http://wp.realraum.at/wp-content/uploads/2018/09/wpid-DSC_8117-1024x576.jpg" alt="wpid-DSC_8117.JPG" width="750" height="422" />](http://wp.realraum.at/wp-content/uploads/2018/09/wpid-DSC_8117.jpg)
-Finally we soldered the cable’s wires onto a 8pin socket and put whole thing in the casing of a dead H801. That way we still have the option of flashing better settings and firmware onto the ATtiny in the future. Add a few zip-ties for mechanical stability and voilà: Working HDMI port.
+Finally we soldered the cable’s wires onto a 8pin socket and put whole thing in the casing of a dead H801. That way we still have the option of flashing better settings and firmware onto the ATtiny in the future. Add a few zip-ties for mechanical stability and voilà: Working HDMI port.
Note the zip-tie securing our hack to the fat HDMI extension.
---
id: 1119
-title: '“All Creatures Welcome” – die Doku'
+title: '“All Creatures Welcome” – die Doku'
date: 2018-10-26T19:39:09+00:00
author: xro
layout: post
---
id: 1133
-title: 'Mini Workshop – Mikrobio Basics'
+title: 'Mini Workshop – Mikrobio Basics'
date: 2018-11-09T14:47:13+00:00
author: salmonella
layout: post
- olga
- workshop
---
-
+
Esef und Sanchez haben einen Mini-Workshop für Labor- und Mikrobio-Basics abgehalten. Darunter Medium mischen, Agar-Platten gießen, Bakterien-/Keimkulturen ausstreichen, pipettieren, mikroskopieren usw.
[<img class="alignnone wp-image-1134 size-full" src="http://wp.realraum.at/wp-content/uploads/2018/11/mini-workshop1.jpg" alt="Austreichen auf Agarplatte" width="800" height="388" />](http://wp.realraum.at/wp-content/uploads/2018/11/mini-workshop1.jpg)
-
+
Über Nacht wurden die Kulturen dann bei 37°C inkubiert.
[<img class="alignnone wp-image-1137" src="http://wp.realraum.at/wp-content/uploads/2018/11/DSC_2027-e1541770923507-300x267.jpg" alt="Mini Workshop Mikrobio Basics Ergebnisse" width="360" height="320" />](http://wp.realraum.at/wp-content/uploads/2018/11/DSC_2027.jpg)
-… und das Ergebnis kann sich wirklich sehen lassen!
+… und das Ergebnis kann sich wirklich sehen lassen!
Die Keime sind gut angewachsen und zeigen eine intensive Gelb- oder Rot-Färbung.
- <figure id="attachment_1135" style="width: 201px;" class="wp-caption alignnone">
+ <figure id="attachment_1135" style="width: 201px;" class="wp-caption alignnone">
[<img class="wp-image-1135" src="http://wp.realraum.at/wp-content/uploads/2018/11/mini-workshop4-146x300.jpg" alt="Milchagar für Laktobazillen" width="201" height="414" />](http://wp.realraum.at/wp-content/uploads/2018/11/mini-workshop4.jpg)<figcaption class="wp-caption-text">Milchagar für Laktobazillen</figcaption></figure>
Falls jemand Interesse bekommen hat, so einen Workshop zu machen oder vielleicht sogar eine eigene Idee hat die er gerne ausprobieren möchte, meldet euch einfach bei uns.
-
+
<olga@realraum.at>
---
id: 1152
-title: 'Dirty Waters & La résistance vivante!'
+title: 'Dirty Waters & La résistance vivante!'
date: 2018-12-27T17:55:53+00:00
author: salmonella
layout: post
Falls ihr mehr darüber wissen möchtet, am Laufenden bleiben oder Interesse habt in irgendeiner Form mitzuwirken meldet euch per Mail, Facebook, riot.im, folgt uns auf Instagram oder schaut persönlich vorbei.
-
+
-Dirty Waters Greenpeace Studie – <https://www.greenpeace.at/assets/uploads/pdf/presse/Greenpeace-Report_Dirtywaters.pdf>
+Dirty Waters Greenpeace Studie – <https://www.greenpeace.at/assets/uploads/pdf/presse/Greenpeace-Report_Dirtywaters.pdf>
<https://wp.realraum.at/>
<https://www.instagram.com/realraum/>
-
\ No newline at end of file
+
\ No newline at end of file
- Projekte
- realraum News
---
-As you might know, quite a while ago, our electronics lab TESLA moved to the second flat “W2″. There is a lot more space and equipment for electronic hackery now, BUT. We found that sometimes it would be nice to have some basic soldering capability in our main lounge “LoTHR” as well. Fret no more, with our new workbench (Work in Progress) we also set up a a micro electronics area.
+As you might know, quite a while ago, our electronics lab TESLA moved to the second flat “W2″. There is a lot more space and equipment for electronic hackery now, BUT. We found that sometimes it would be nice to have some basic soldering capability in our main lounge “LoTHR” as well. Fret no more, with our new workbench (Work in Progress) we also set up a a micro electronics area.
These absolute basics currently consisting of:
2. Lab-Power-Supply (DC/DC up to 30V / 5A)
3. a Multimeter
-Note that it is not meant to replace TESLA. Just to keep you from moving your project all the way to ‘W2″ if all you need to do is solder two wires or check one voltage.
+Note that it is not meant to replace TESLA. Just to keep you from moving your project all the way to ‘W2″ if all you need to do is solder two wires or check one voltage.
-
+
## Building the micro electronics box
Basically I got us a DPS3005 constant current / constant voltage power supply and a small KSGER soldering station and connected them to a 27V 3.5A power supply.
-Then, as per Ernst’s suggestion, we put everything into a nice and sturdy box which formally housed external SCSI HDDs.
+Then, as per Ernst’s suggestion, we put everything into a nice and sturdy box which formally housed external SCSI HDDs.
The front-panel was laser-cut so all the equipment would fit and voila, after a few hours putting everything together, here we are.
categories:
- realraum News
---
-
+
-Für die Maker Faire und ähnliche Events benötigen wir unbedingt ein Bobbycar mit Allradantrieb. Da es bereits ähnliche Projekte von [
+Für die Maker Faire und ähnliche Events benötigen wir unbedingt ein Bobbycar mit Allradantrieb. Da es bereits ähnliche Projekte von [
Für die Maker Faire und ähnliche Events benötigen wir unbedingt ein Bobbycar mit Allradantrieb. Da es bereits ähnliche Projekte von](https://larsm.org/allrad-e-bobby-car/) und [Fisch](https://figch.de/index.php?nav=bobbycar) gibt, fiel die Wahl auch bei uns Hoverboard Motoren. Diese können aus defekten Hoverboards ausgebaut werden.
[<img class="alignnone size-medium wp-image-1171" src="http://wp.realraum.at/wp-content/uploads/2019/01/IMG_20190123_235630-300x225.jpg" alt="img_20190123_235630" width="300" height="225" />](http://wp.realraum.at/wp-content/uploads/2019/01/IMG_20190123_235630.jpg)
-
+
Die hinteren Motoren wurden an einer Alu Platte befestigt:
- Projekte
- realraum News
---
-Our mini electronics all-in-one box for LoTHR (so people in LoTHR don’t have to walk all the way to TESLA for the quick and small stuff), got an upgrade.
+Our mini electronics all-in-one box for LoTHR (so people in LoTHR don’t have to walk all the way to TESLA for the quick and small stuff), got an upgrade.
-The previously empty top slot now features an XY-FZ35 programmable electronic load. Test your power supply, test your batteries capacity, draw a discharge graph, use it in ways not intended by it’s makers. (But if you break or brick it, You Replace And Fix It ASAP!)
+The previously empty top slot now features an XY-FZ35 programmable electronic load. Test your power supply, test your batteries capacity, draw a discharge graph, use it in ways not intended by it’s makers. (But if you break or brick it, You Replace And Fix It ASAP!)
The tiny cut-out on the top left of the load, features a mini-USB jack where we put an USB serial-TTL converter connected to the GND,TX,RX pins of the load. Using the easy command-set you can indeed periodically poll your batteries discharge rate, voltage on so on.
See [photos and videos in the gallery.](https://galley.realraum.at/index.php?/category/187)
-
+
**First** I went looking for a trapezoid box maker. Turns out, there is none that I could find. [Here is an otherwise impressive list of joint and box scripts, which I came across.](https://wiki.realraum.at/lasercutter:anleitungen_und_materialdaten#software_und_tools)
I went to images.google.com and started browsed for creative commons or copyright free SVGs and designs. Most links went to etsy or Pinterest. That sucked.
-After quickly being fed up seeing price tags for simple SVGs, I decided to try my hand at drawing. Due to time constraints and out of concerns for stability I opted for thicker connections and larger windows instead of many fine patterns. Turns out, even a noob with the r3 Wacom tablet like me, can still manage to get workable results within an hour. Workable as proof of concept, anyway and not at all geeky. (My first attempt with drawing gears failed miserably) Our resident art critic found the result to be to “eso”-inspired for his liking. The direct view onto the lamp allowed by the bigger windows also turned out to be uncomfortable, so I had to glue in some backing paper as diffuser.
+After quickly being fed up seeing price tags for simple SVGs, I decided to try my hand at drawing. Due to time constraints and out of concerns for stability I opted for thicker connections and larger windows instead of many fine patterns. Turns out, even a noob with the r3 Wacom tablet like me, can still manage to get workable results within an hour. Workable as proof of concept, anyway and not at all geeky. (My first attempt with drawing gears failed miserably) Our resident art critic found the result to be to “eso”-inspired for his liking. The direct view onto the lamp allowed by the bigger windows also turned out to be uncomfortable, so I had to glue in some backing paper as diffuser.
-
+
####
**Third** is the light source. The original idea was, to make enough space so we can put in any (battery powered) light that we might have at hand. I decided to deviate the prototype a bit by re-using the IR-handwave-controlled-light of an old broken Mathmos lamp of mine. All the modifcation that was needed is a cut-out circle at the bottom and the top for the sensor.
-
+
#### Finished Prototype:
</tr>
</table>
-#### How did this project fail in it’s goal to make a lamp to quickly and easily assemble at CCCamp:
+#### How did this project fail in it’s goal to make a lamp to quickly and easily assemble at CCCamp:
1. Fail: Glue required for baking paper diffuser, required due to too large windows.
2. Fail: Glue required for Finger-joints.
5. Concern: turned out to be larger than necessary
6. Concern: Wood/MDF is recyclable and great for in-tent but maybe less fine for outdoor illumination.
-
+
#### How did this prototype succeed?
2. Enough space for any light one might want to put in.
3. The IR-handwave-controlled-lamp-module was successfully revived in this lamp.
4. I got to play with the Wacom Tablet
- 5. It makes a nice in-tent / in-door lamp that will find it’s way to CCCamp2019 despite it’s failings
+ 5. It makes a nice in-tent / in-door lamp that will find it’s way to CCCamp2019 despite it’s failings
6. Lessons were learned
-
+
#### Lessons learned:
* Wood is great for in-tent/in-doors but requires treatment for outdoor use. At that point we might consider cutting some lamps from Acrylic rather than treating the wood with laminating foil or lacquer.
* Big holed patterns make less impressive light patterns even though they allow for more stable sides.
* Big holed patterns require a diffuser like baking paper that needs to be glued on.
- * Don’t just copy&paste side panels, remember that joints need to fit together.
+ * Don’t just copy&paste side panels, remember that joints need to fit together.
* Two side panels needs to be less wide by $materialthickness if one wants a quadratic bottom and top.
* Finger-joints are a bad choice for quick and glue-less assembly. Examples for designs that might not require glue: [[1]](https://www.thingiverse.com/thing:3362978), [[2]](https://www.thingiverse.com/thing:2755535)
\ No newline at end of file
Abonniert ihn am besten mit dieser URL: [https://r3.at/events.ics](https://r3.at/events.ical)
-
+
### Kommende Veranstaltungen:
<tr class=" inprogress allday calics vevent balccon event">
<td class=" amrcol1">
<div class="enddate">
- to <abbr class="dtend" title="2019-09-15T00:00:00+02:00">Sonntag, 15th Sep</abbr>
+ to <abbr class="dtend" title="2019-09-15T00:00:00+02:00">Sonntag, 15th Sep</abbr>
</div>
<div class="allday">
- all day
+ all day
</div>
</td>
<tr class=" future calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup lothr event">
<td class=" amrcol1">
<div class="starttime">
-  20:00
+ 20:00
</div>
<div class="enddate">
<tr class=" future calics vevent glt grazer-linuxtage orga orga-meeting workshop event">
<td class=" amrcol1">
<div class="starttime">
-  19:00
+ 19:00
</div>
<div class="enddate">
<tr class=" future calics vevent geekend machquadrat event">
<td class=" amrcol1">
<div class="starttime">
-  16:00
+ 16:00
</div>
<div class="enddate">
- to <abbr class="dtend" title="2019-10-06T18:00:00+02:00">Sonntag, 6th Okt</abbr>
+ to <abbr class="dtend" title="2019-10-06T18:00:00+02:00">Sonntag, 6th Okt</abbr>
</div>
<div class="endtime">
<tr class=" future calics vevent amateurfunk raum2 realraum realfunk event">
<td class=" amrcol1">
<div class="starttime">
-  18:00
+ 18:00
</div>
<div class="enddate">
<tr class="odd alt future calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup r2w2 event">
<td class=" amrcol1">
<div class="starttime">
-  21:00
+ 21:00
</div>
<div class="enddate">
<tr class=" future calics vevent realraum organisation besprechung verein planung projekte interna mitglieder event">
<td class=" amrcol1">
<div class="starttime">
-  19:00
+ 19:00
</div>
</td>
<tr class=" future allday calics vevent privacy week event">
<td class=" amrcol1">
<div class="enddate">
- to <abbr class="dtend" title="2019-10-27T00:00:00+02:00">Sonntag, 27th Okt</abbr>
+ to <abbr class="dtend" title="2019-10-27T00:00:00+02:00">Sonntag, 27th Okt</abbr>
</div>
<div class="allday">
- all day
+ all day
</div>
</td>
<tr class="odd alt future calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup lothr event">
<td class=" amrcol1">
<div class="starttime">
-  20:00
+ 20:00
</div>
<div class="enddate">
<tr class=" future calics vevent amateurfunk raum2 realraum realfunk event">
<td class=" amrcol1">
<div class="starttime">
-  18:00
+ 18:00
</div>
<div class="enddate">
<tr class="odd alt future calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup r2w2 event">
<td class=" amrcol1">
<div class="starttime">
-  21:00
+ 21:00
</div>
<div class="enddate">
<tr class=" future calics vevent realraum organisation besprechung verein planung projekte interna mitglieder event">
<td class=" amrcol1">
<div class="starttime">
-  19:00
+ 19:00
</div>
</td>
<tr class=" future calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup lothr event">
<td class=" amrcol1">
<div class="starttime">
-  20:00
+ 20:00
</div>
<div class="enddate">
<tr class=" future calics vevent amateurfunk raum2 realraum realfunk event">
<td class=" amrcol1">
<div class="starttime">
-  18:00
+ 18:00
</div>
<div class="enddate">
<tr class="odd alt future calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup r2w2 event">
<td class=" amrcol1">
<div class="starttime">
-  21:00
+ 21:00
</div>
<div class="enddate">
<tr class=" future calics vevent realraum organisation besprechung verein planung projekte interna mitglieder event">
<td class=" amrcol1">
<div class="starttime">
-  19:00
+ 19:00
</div>
</td>
<tr class=" inprogress allday calics vevent balccon event">
<td class=" amrcol1">
<div class="enddate">
- to <abbr class="dtend" title="2019-09-15T00:00:00+02:00">Sonntag, 15th Sep</abbr>
+ to <abbr class="dtend" title="2019-09-15T00:00:00+02:00">Sonntag, 15th Sep</abbr>
</div>
<div class="allday">
- all day
+ all day
</div>
</td>
<tr class=" history inprogress calics vevent realraum organisation besprechung verein planung projekte interna mitglieder event">
<td class=" amrcol1">
<div class="starttime">
-  19:00
+ 19:00
</div>
</td>
<tr class=" history inprogress calics vevent chaos communication camp cccamp 2019 realraum event">
<td class=" amrcol1">
<div class="starttime">
-  20:05
+ 20:05
</div>
<div class="enddate">
<tr class=" history inprogress calics vevent votrag python typing event">
<td class=" amrcol1">
<div class="starttime">
-  19:00
+ 19:00
</div>
<div class="enddate">
<tr class=" history inprogress calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup r2w2 event">
<td class=" amrcol1">
<div class="starttime">
-  21:00
+ 21:00
</div>
<div class="enddate">
<tr class=" history inprogress allday calics vevent realraum ccc camp event">
<td class=" amrcol1">
<div class="enddate">
- to <abbr class="dtend" title="2019-08-25T00:00:00+02:00">Sonntag, 25th Aug</abbr>
+ to <abbr class="dtend" title="2019-08-25T00:00:00+02:00">Sonntag, 25th Aug</abbr>
</div>
<div class="allday">
- all day
+ all day
</div>
</td>
<tr class=" history inprogress calics vevent realraum funkfeuer 0xff wlan mesh networking treffen meetup lothr event">
<td class=" amrcol1">
<div class="starttime">
-  20:00
+ 20:00
</div>
<div class="enddate">
cyberchimps_page_title_toggle:
- 1
---
-### Das Ziel des ‘Open bioLab Graz – Austria’
+### Das Ziel des ‘Open bioLab Graz – Austria’
Uns treibt ein starkes Interesse an molekularbiologischer Forschung und Technik an, für den kreativen, freien und selbstständigen Umgang damit sowie für interdisziplinäres und gemeinschaftliches Arbeiten.
Ein offenes Gemeinschaftslabors für Biologie und Molekularbiologie von Forschungsbegeisterten für Forschungsbegeisterte zu unterhalten.
-Wir stellen ein für Interessierte frei zugängliches Labor zur Verfügung, bieten Platz für kreative, gemeinschaftliche, fächerübergreifende Projekte, Freude an der Forschung, sowie Lernen von und miteinander. Dabei kooperieren wir gerne mit Schulen, universitären Fakultäten und begeisterten Einzelpersonen und Personengruppen. Das OLGA ist nicht nur ein Hobby, sondern auch als Inspiration und wertvolle Ergänzung zur Bildung. Die nötige Ausrüstung wurde und wird laufend über Spenden, Eigenentwicklungen (Thermocycler, Bioreaktor, 3D-Bioprinter) oder aus nicht mehr benötigten Altbeständen organisiert. Während es in anderen Fachbereichen wie Elektronik bereits viele entsprechende Initiativen gibt (in Wien z.B. das ‘Metalab’), kann man freie Labore für Molekularbiologie in ganz Europa an einer Hand abzählen, sogar weltweit finden sich nur unwesentlich mehr. Sie wurden unter Begriffen wie “DIY-Bio” oder “Bio-hacking” bekannt. Wir freuen uns, in Graz eine österreichweite Vorreiterrolle einnehmen zu können. Begeisterte Mitwirkende aus anderen Teilen Österreich und sogar dem nahen Ausland unterstreichen dies.
\ No newline at end of file
+Wir stellen ein für Interessierte frei zugängliches Labor zur Verfügung, bieten Platz für kreative, gemeinschaftliche, fächerübergreifende Projekte, Freude an der Forschung, sowie Lernen von und miteinander. Dabei kooperieren wir gerne mit Schulen, universitären Fakultäten und begeisterten Einzelpersonen und Personengruppen. Das OLGA ist nicht nur ein Hobby, sondern auch als Inspiration und wertvolle Ergänzung zur Bildung. Die nötige Ausrüstung wurde und wird laufend über Spenden, Eigenentwicklungen (Thermocycler, Bioreaktor, 3D-Bioprinter) oder aus nicht mehr benötigten Altbeständen organisiert. Während es in anderen Fachbereichen wie Elektronik bereits viele entsprechende Initiativen gibt (in Wien z.B. das ‘Metalab’), kann man freie Labore für Molekularbiologie in ganz Europa an einer Hand abzählen, sogar weltweit finden sich nur unwesentlich mehr. Sie wurden unter Begriffen wie “DIY-Bio” oder “Bio-hacking” bekannt. Wir freuen uns, in Graz eine österreichweite Vorreiterrolle einnehmen zu können. Begeisterte Mitwirkende aus anderen Teilen Österreich und sogar dem nahen Ausland unterstreichen dies.
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[<img class="alignnone wp-image-86 size-full" src="/wp-content/uploads/2015/09/realraum_movein.jpg" alt="realraum_movein" width="1020" height="416" />](/wp-content/uploads/2015/09/realraum_movein.jpg)
-
+
-**Hackerspace klingt für mich irgendwie böse….**
+**Hackerspace klingt für mich irgendwie böse….**
> Hacken bedeutet für uns Systeme zu verstehen in man sie mal auseinandernimmt, genau betrachtet und vielleicht auf neue und kreative Art und Weise wieder zusammensetzt. Dinge anders als vorgesehen funktionieren zu lassen, kann Kunst sein oder einfach nur Spaß machen. Für die meisten von uns ist Hacken synonym mit Basteln.
>
> Dabei muss es nicht unbedingt immer um Technik gehen. Wir nutzen Reagenzgläser um Applaus zu messen, Beleuchtungsstrips um ein Logo zu basteln, Glühbirnen um veganes Tempe zu brüten, alte Laptopbildschrime als Infokiosk, usw.
-**In einem Verein gibt es doch einen Vorstand und genau verteilte Aufgaben…
+**In einem Verein gibt es doch einen Vorstand und genau verteilte Aufgaben…
**
---
[<img class=" size-medium wp-image-13 alignleft" src="http://wp.realraum.at/wp-content/uploads/2015/09/realraum_raumnamen-264x300.png" alt="realraum_raumnamen" width="264" height="300" />](http://wp.realraum.at/wp-content/uploads/2015/09/realraum_raumnamen.png)Der physikalische _realraum_ ist ein Vereinslokal in der Brockmanngasse 15 in Graz. Der _Raum_ besteht eigentlich aus mehreren Räumen, die wir euch im Folgenden kurz vorstellen.
-Nach Durchschreiten unserer Vordertür, stilecht gesichert durch ein elektronisches Schloss Marke Eigenbau, befindet man sich in unserer _Lounge for Tinkering / Talking, Hacking & Relaxing / Reading,_ kurz **LoTHR**. Wie der Name schon sagt wird dieser Raum vielseitig genutzt und ist auch unser Hauptraum. Dort finden außerdem die meisten unserer Workshops und Parties statt, Infrastruktur wie Beamer & Leinwand vorhanden. Außerdem wohnen hier unser [Lasercutter](http://realraum.at/wiki/doku.php?id=lasercutter:lasercutter) und der [3D-Drucker](http://realraum.at/wiki/doku.php?id=3dprinting:3dprinting). Des weiteren befindet sich in einer Ecke das Tesla, unser Elektronik-Labor. Besonders abends laden Ambient Light, Stereoanlage, Couchen und eine kleine Küche zum “socializen” ein.
+Nach Durchschreiten unserer Vordertür, stilecht gesichert durch ein elektronisches Schloss Marke Eigenbau, befindet man sich in unserer _Lounge for Tinkering / Talking, Hacking & Relaxing / Reading,_ kurz **LoTHR**. Wie der Name schon sagt wird dieser Raum vielseitig genutzt und ist auch unser Hauptraum. Dort finden außerdem die meisten unserer Workshops und Parties statt, Infrastruktur wie Beamer & Leinwand vorhanden. Außerdem wohnen hier unser [Lasercutter](http://realraum.at/wiki/doku.php?id=lasercutter:lasercutter) und der [3D-Drucker](http://realraum.at/wiki/doku.php?id=3dprinting:3dprinting). Des weiteren befindet sich in einer Ecke das Tesla, unser Elektronik-Labor. Besonders abends laden Ambient Light, Stereoanlage, Couchen und eine kleine Küche zum “socializen” ein.
Der Connector, kurz **Cx**, verbindet alle unsere Räume miteinander. Außerdem wohnen in diesem Raum unsere Netzwerk-Infrastruktur und unser Raum-Server _AlfRED_. So nebenbei stapeln sich hier auch die Getränke-Kisten, um immer genug Bier, Mate, Makava und Apfelsaft für die Küche bereit zu haben.
-Über den Connector gelangt man unter anderem in’s Open BioLab Graz – Austria, kurz **OLGA**. [Mehr Infos über’s OLGA](http://wp.realraum.at/?page_id=48).
+Über den Connector gelangt man unter anderem in’s Open BioLab Graz – Austria, kurz **OLGA**. [Mehr Infos über’s OLGA](http://wp.realraum.at/?page_id=48).
-Außerdem findet sich neben dem OLGA noch unsere Werkstatt, auch Machine Shack, oder kurz **MaSha**, genannt. Hier findet sich Werkbank, Bohrmaschinen, Schraubenzieher & Schrauben, Hammer & Nägel, Sägen, … alles, was man zum Arbeiten mit Holz, Metall und anderen Materialien so brauchen kann.
+Außerdem findet sich neben dem OLGA noch unsere Werkstatt, auch Machine Shack, oder kurz **MaSha**, genannt. Hier findet sich Werkbank, Bohrmaschinen, Schraubenzieher & Schrauben, Hammer & Nägel, Sägen, … alles, was man zum Arbeiten mit Holz, Metall und anderen Materialien so brauchen kann.
Eine [detaillierte Erklärung der Räume](http://realraum.at/wiki/doku.php?id=roomtools) ist in unserem Wiki zu finden. Ebenso im Wiki findet sich eine [Liste aller im Raum verfügbaren Werkzeuge](http://realraum.at/wiki/doku.php?id=werkzeug).
---
id: 461
-title: 'Tesla – an ode to our electronics corner'
+title: 'Tesla – an ode to our electronics corner'
date: 2016-02-05T01:22:01+00:00
author: xro
layout: page
---
[<img src="http://wp.realraum.at/wp-content/uploads/2016/02/DSC_4732-1024x576.jpg" alt="Tesla cleaned up" width="750" height="422" class="aligncenter size-large wp-image-460" />](http://wp.realraum.at/wp-content/uploads/2016/02/DSC_4732.jpg)
-This is our electronics corner. Aptly named “Tesla”. Which nicely fits the theme set by LoTHR, OLGA and MaSha. Examples for other names of corners or rooms in realraum. Additionally Tesla himself was from Serbia/Austria and even studied in Graz, so there you go.
+This is our electronics corner. Aptly named “Tesla”. Which nicely fits the theme set by LoTHR, OLGA and MaSha. Examples for other names of corners or rooms in realraum. Additionally Tesla himself was from Serbia/Austria and even studied in Graz, so there you go.
-That’s not important however.. not as important as the fact that may immediately catch the eye of the casual visitor to our humble hackerspace:
+That’s not important however.. not as important as the fact that may immediately catch the eye of the casual visitor to our humble hackerspace:
-**Tesla has been tidied up!** … **Please people, keep it this way :-)**
+**Tesla has been tidied up!** … **Please people, keep it this way :-)**
Observe the power supplies on the right and top-left. Plugged in and ready to use. No need to move it around.
projects / homepage.git / commitdiff