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2015-08-07: Idea for a Hack or Project? No time right now? Really want this to get done, or at least not forget it? Like company? Trying out a new wiki page to dump ideas and look for other interested parties: projectsink

2015-03-22: LulzBot TAZ4 at realraum !!!

Thursday we unboxed our highly anticipated TAZ4 #3DPrinter, which we won as part of the #LulzBot 4th Annual Hackerspace Giveaway.

It rulez !! :-)

We have a very coloured history when it comes to 3D printing. Ever since we ordered the first parts for our self-built RepRap Mendel years ago, 3D printing was something you did not mention easily at realraum.

The RepRap was built, rebuilt, adjusted, taken apart, modified and hacked, again and again. All with mixed success. While we did learn a lot about 3D printers in the process, likely spent more than 300 man hours on it and even wrote a big TeaCup firmware patch, the thing probably only ever spent a sum total of 2 weeks out of 5 years in a state where it could actually print, badly! Most of the time however, nobody knew who last took apart what or was planning to improve which thing next.

Then came the MakiBox. Co-sponsored by one of our founding members (who resided in Hong-Kong at the time and co-founded DimSumLabs there) Always on a tight budget, this first-of-the-line production model seemed the perfect way to finally make 3D printing a reality here at realraum. Especially since said founding member was sponsoring it. In its defence can be said, that, frail as the design was, it did actually print in the beginning. Unfortunately that state would not hold very long. We then decided not to review the MakiBox, as we were missing the words to describe just how crappy it really was.

Again, 3D printing was not mentioned at realraum for about a year.

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.

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.

Our first test prints came out very well. Even when stress-testing with our crappy old PLA roll, the prints came out very nice. The nice fan and air-guide works just as expected and overhangs printed without problems. Using rafts, even delicate and complex prints with little surface area came out fine.

To show off the printing process (and experiment with gstreamer), we mounted a webcam on the platform, the resulting time-lapse videos can be found in the gallery.

It does have its hard edges, but this printer is not meant to be super-user-friendly and DAU-resistant. Instead it is hackable, open-source and a precise straight-forward work-horse. Just how we like it! Despite our hack-at-it attitude, we _did_ appreciated the big and surprisingly useful user-manual as well as the handy illustrated first-steps flyer.

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 :-) 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 !!

2015-03-13: PiDay 2015, ab 20:00 Flyer

2015-03-07, ab 15:00: Retro-Raum: Wiki

2015-02-19: Nachbarschaftstreffen im Tintenfass, ab 16:30 Einladung

2014-12-02: Fotos vom Besuch der Forscherkids sind online: Hier und Hier

2014-11-17: Der Lasercutter kann bald benutzt werden, selbstverständlich von kompetenten Personen mit Einschulung. Termine im Kalender. Fotos Der Laser hat gezündet! Helmut zeigt wie es geht.

2014-10-14: realraum wird sich am Samstag 25. Oktober im Rahmen des Elevate Festivals per Live-Video-Übertragung vorzustellen. Dazu gibt es open house mit Ganztagesprogramm.

2014-10-14: Der 4. Montag ist ab jetzt der Montag für das Abschließen von offenen Baustellen aka “Aaah, deis homma glei-Treffen”.

2014-05-20: Lasercutter im realraum!

2014-04-29: realraum Team in Irland ;-) (tu-news)

2014-04-05: realraum am Grazer Linuxtag 2014. Besucht uns.

2014-04-04: Lange Nacht der Forschung in Graz und Grazer Linuxtage Workshoptag

2014-03-30: Endlich ziehen wir unser SVN auf ein GIT-Repo um

2014-01-16: Vortragsankündigung: “Sicherheit und Gute Laborpraxis (GLP) im OLGA” mit anschließender Diskussion für alle Interessierten! Datum: Sonntag, 2014-01-19, 17 Uhr, vor dem offenen Labortreffen.

2014-01-12: Still partying on ;-) Fotos von der Party hier. Party Statistik:

2014-01-11:

2014-01-10: Leinwand und Beamer endlich montiert! ;-) (Fotos)

2014-01-08: Bar und Whiteboard endlich montiert ! :-) (Fotos)

2014-01-07: Großer Kisteneinräume und Raumaufräumtag. Wieder so einiges weitergegangen :-)

2013-12-23: Das Wochenende genützt um Vorweihnachtliche Umbauarbeiten durchzuführen und wieder einiges auf der brockmanngassetodo-Liste abzuhacken.

Doku gesprieben Platinenaetzen für Dummies

2013-12-09: Mitgliedertreffen erfolgreich hinter uns gebracht. Küche ist praktisch fertig. MaSha Boden ist fertig. Rest wird bald erledigt.

2013-11-19: Küchenkastl montiert, Netzwerkkabel gepatcht, gefeiert :)

2013-11-14: Endlich die restlichen 14 Netzwerkkabel eingezogen und verlegt. Gehören allerdings noch gepatcht und getestet.

2013-11-13: Rest der Küche kommt.

2013-11-12: MakiBox angekommen!!!! Fotos und Videos

2013-11-07: Einrichtungsvorschlag 3D Modell auf Tinkercad aktualisiert Aktuelleres Foto auf die Homepage, zukünftig wird Foto öfter geändert.

2013-11-06: Küchenkästen abgeholt. Leider noch nicht alles. Nächste Woche kommt der Rest.

3LD http://plus.realraum.at angelegt, da +Namen urls bei google vermutlich irgendwann kostenpflichtig werden.

2013-10-31: Homepage überarbeitet und aufgeräumt

Auspacken / Umzug / Neueinrichtung läuft immer noch (siehe brockmanngassetodo )