Ender 3 direct drive extruder

thingiverse

This is a simple conversion to a direct drive extruder on Ender 3. It is a holder for a stepper motor and a dual filament feeder. Filament feeder see. link https://www.aliexpress.com/item/33037642453.html?spm=a2g0s.9042311.0.0.50c14c4do6GNa9 You must also set extruder steps up to E142,7. I used ABS for better temperature resistance (stepper motor temperature). At first I printed the whole assembly with supports, but there was a lot of deformation and inaccuracies (I do not have a heated box), so I divided the holder into individual parts that can be easily printed (without the support structure). (If you have a heated box, it should be printed as an assembly) I glued the parts together with acetone. After curing, I dipped the whole holder into acetone for a total hardening and even surface. The result is a very strong and lightweight construction. Update 9.2.2020: I added a D10x1 countersink for the M5 screw for use on the original guide wheels. This creates more space for the screw head. New components are under "V2".