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Printrbot: Your First 3D Printer by Brook Drumm

I designed the Printrbot to be the simplest 3D printer yet.  There are some great kits out there - the Makerbot, the Ultimaker, the Prusa Mendel, and others - but none as small and simple as the Printrbot.  This all-in-one 3D printer kit can be assembled and printing in a couple of hours.  Other kits will not only take you many more hours to build, they will also have hundreds more parts, and they will cost more.  My design also does away with the finicky calibration and adjustment from which most 3D printers suffer.   This is the printer a kid could put together. We assemble the electronics, we assemble the hotend, and we put the connectors on all the motors and components… no soldering required!

These are said to only take 45 minutes to build compared to the hours it takes to build a reprap or makerbot.  They are also comparably cheaper, only $500 for a kit and $750 for a fully assembled machine, if they get fully kickstartered.

Kickstarter