This is another lasercut - frame printer based on Mendel Prusa i3 and Graber.
Increased frame gives greater print area (200x200x350mm)
You can use any of the carriage for Prusa i3
(I use Rasus carriages http://www.thingiverse.com/thing:174561)
Use 6mm studs and 8mm shafts
Frame is held together with screws m3 20mm
As there are holes for the mounting Arduino Mega (RAMPS)
Use "Another 6" for 6-6.5mm materials, and "Another 7" for 6.5-7mm materials.
NEW: x-carriage to MK7 extruder
just assemble as a constructor and pull with screws
use 8mm rod 2x 500mm, 2x 400mm, 2x 350mm and m6 2x 500mm