Here is the background material on the RepRap Prusa version we are building: http://reprap.org/wiki/Prusa Software Marlin firmware: http://reprap.org/wiki/Marlin Slic3r http://slic3r.org/ Printrun/pronterface http://reprap.org/wiki/Printrun
Teach yourself OpenSCAD: http://www.openscad.org/ and manual http://en.wikibooks.org/wiki/OpenSCAD_User_Manual
Place to find cool things to print: http://www.thingiverse.com/
The RecycleBot: https://www.appropedia.org/Recyclebot_v2.3 and the best ideas from the Lyman http://www.thingiverse.com/thing:30642 and the Filabot http://web.archive.org/web/20160426072743/http://www.thingiverse.com:80/thing:24583
If you're brand new to Arduino-esque mini controllers, here are some great tutorials (adafruit sells fantastic kits at good prices, too): https://www.adafruit.com/tutorials
Panel for making a RAMPS-based printer stand-alone: http://tommyc-reprap.blogspot.com/2012/03/panelmax-tutorial.html
This is stupidly long, but catalogs a smartly done conversion of a low cost vertical mill to CNC: http://www.cnczone.com/forums/benchtop_machines/98694-hosss_g0704.html
If you really want to open source something: http://www.backyardmetalcasting.com/
Another OSH laser cutter and CNC odds 'n ends along with a neat web-based gcode viewer that might serve nicely in a web-based 3D print server: http://www.buildlog.net/
How to turn a couple old DVD writers into a mini laser cutter: http://elabz.com/dvd-cnc-laser-cutter-diy-concept/
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