Ender 3 direct drive mount for BMG extruder (Drivinator remix)

This is a complete redesign of the Drivinator for my ender 3 v2. This fits a BMG extruder.

The purpose of the slots holding the motor is to make maintaining the hotend easier. The idea is that you don't use a coupler on the BMG. Instead you used the slots to push the bmg down to secure the PTFE tube in place.

Note 1.) the bmg clone that I bought came with screws the were not long enough. I had to source 3 M3x40mm and add a 2.5mm space between the motor and the mount.

Note 2.) Due to the nature of printing holes without supports, you may need to drill out the mount holes with a 5/16" bit. As well, I used a torch to heat the slot that fits over the top of the backplate so that it fits.

Update (May 28th, 2022) - I printed mine in ABS but PETG would probably be fine. PLA is not ok as the motor heats up (as noted in one of the comments). Printing with supports (from the plate only) is required. After using for over a year, I can state it's held up really well. No wobble thanks to the slot that wraps around the top of the backplate. 

Category: 3D Printer Parts