The standard CR10 mount for my BMG extruder fouled with the leadscrew nut. This part hopes to rectify that issue.
I made the recesses for the nuts a tight fit, so you'll need to press them in with pair of pliers or a hammer and a suitable tool.
The stepper motor should also be a snug fit.
MG Chemicals PLA
PLA seems to be plenty strong enough, it took a lot for me to break an earlier revision.