This is a 3Gears extruder, My first extruder design, other extruder usually has one motot gear and one driver gear ,with big volume .I am trying to put 2~3 extruders on a printrbot Plus ,so a smaller extrduer will be needed , and i try to DDIY (design and do it myself) ^__^.
683zz bearings 2
608zz bearings 3
M8 hobblted screw *1
and some m3 screws
2014/1/27 update :improve the inside space to make the hobblted screw working better. And some gay said he dosn't has 683zz bearings , only has some 63zz, so I make a middle gear for 63zz.
2014/1/22 update: add base for jhead and PC04-01