Extruder YRUDS MK7 3mm - for Prusa / Mendel / BiBONE

YRUDS dedicated for MK7 filament guide.

U need to buy:
- MK7 filament guide
- 1x 626 2RS ball bearing
- 2x 605 2RS ball bearings

6mm dia hole inside extruders body is designed for 6/4 PTFE tube.
J-Head mount system.

Torque test - 5.6kg
http://www.youtube.com/watch?v=vA_7emchTuY&feature=youtu.be