I'm printing on an Original Prusa i3 Mk2 that I assembled myself.
The printer can process almost any material (PLA, ABS, PETG, Flexible/Filled materials, ...) and is very precise.
If you need a custom designed part, just ask! I have experience designing functional parts in Sketchup and am in the process of learning Fusion360.
The Original Prusa i3 Mk2 is currently (Q1 2017) the highest rated 3D-Printer! (http://buff.ly/24WE8pV)
