Belt driven and feeding extruder

A belt driven feeding extruder for the reprap Ormerod. The grip with the belt is more than enough the torque provided by the stepper is on the low side. I use it with 1200 mAh and the original NEMA 17 stepper.

UPDATE:
Added a longer frame (Frame_Long.stl) to be used with longer belts. It should work with belts up to about ~245 mm. Note that a longer bolt may be needed. END OF UPDATE

7 printed parts

4 M3 35 mm bolts with washers and nuts
1 M3 40 mm partially threaded with washers and n