Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Direct Drive extruder

by misan Jan 11, 2012
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One question.

What is the shaft that you have used for the 608zz bearing? And how do you fix it?


Bearing was not a 608 but a 624, with an M4 screw holding it to the idler lever.

Not all the pictures open as larger ones to check the details... I really hate what they've done to Thingiverse sometimes...

I'm quite interested in direct drive extruder at the moment. What's the drive gear you are using? I reckon that for 1.75mm filament, a smaller motor could suffice.

Model boats use these type of brass inserts for couplings: http://www.model-dockyard.com/acatalog/Couplings.htmlhttp://www.model-dockyard.com/...

1.75mm filament can do with less torque, however, if you use a motor like mine you will be able to print three times faster (100mm/sec) reliably