Adapter plate that lets you mount a NEMA-23 motor in a NEMA-34 size mount.  Has built in spacer to provide clearance for the screws that attach the motor to the adapter plate and holes to access shaft coupler or pulley set screws.Print with ABS, 0.2mm layers, 30-50% infill, 2 or 3 top and bottom layers, 2 or 3 perimeters, no support, no raft.