3D Printing Primer
now that we have a live 3D-printer (known to work on both 110V and 220V), I think it would be interesting to have a workshop on 3D design software and 3D printing software.
Is there someone who can give some fundamentals on 3D-printing? (temperatures, concepts, calibration, what one should know) Otherwise, I'll prep with a manual...
 3D design software
- OpenSCAD - let's have a shot at the basics and code some little thingie
- FreeCAD - let's create a Raspberry Pi case (yeah, I know, soooo creative) --> Ctrl-S is the good reflex, it tends to crash every so often...
Next, we can try designing a case for The black knight doorscanner - each takes weapon of choice...
 3D printing software
The result of your 3D design, will describe the properties of a model, like coördinates of every point (f.e. an STL-file). As a 3D printer won't follow these shapes up and down along with the design, but print layer per layer, we'll be needing a different type of file. You could compare it with a regular printer that prints a photo. This also won't first draw the head and then the eyes...it will print line per line. Your 3D printer typically needs a file telling it how to draw each layer. It also includes some technicalities (f.e. how to fill the insides of a shape, and how much the nozzle must heat up). This file is called a gcode-file, and depends of 3 aspects: the printer, the used material and the design/quality.
The following software will help you turn your cleverly designed 3D image into a tangible piece of plastic...
- Slic3r: translate a source file (f.e. STL) into a gcode file that tells the 3D printer how to print.
- Printrun: basically the dashboard of your 3D printer - here you can control your printer, or send commands to it (like: "print awesomedesign.cgode")
Both the Lulzbot TAZ3 manual and the needed software can be downloaded from the Lulzbot site (http://www.lulzbot.com/support/downloads)or from the respective homepages. for both GNU Linux, Mac OS X or Windows... or you could compile from source.
I'd like to give a big thumbs up for the Lulzbot manual. It describes the steps on how to control the printer very much in detail. Especially how to use Slic3r and Printrun are explained quite in depth. I printed this one and have it at home for reference!
 3D design software
- Blender pour l'impression 3D (Merci Serge!)
- 3D model of Raspberry Pi ... handy for fitting inside your design.
== 3D printing software