Flex3Drive mount for E3D toolchanger + Custom BMG extruder

Mounting parts for the Flex3Drive G5 on top of the standard V6 bowden tool on the E3D toolchanger.

I didn't have a lot of success with the G5 as it tended to strip the filament, so I designed my own version based on the Bondtech gears. It uses the worm gear from the flex3drive and the drive gear from the BMG.

Note that the flex3drive flexible shaft is driven backwards which might be bad for precision. I'll have to do some further testing.

Onshape source: https://cad.onshape.com/document