Summary

A replacement knob that I made to fit onto a GE SpaceSaver washer/dryer combo. The original knob used very soft plastic, and sheared off the shaft.

Fits onto a D-shaft with 6mm diameter, and 4.5mm between the shaft's "flat" and the outer circumference.

Print it in the orientation shown. Use supports (for angles > 70 degrees) for ease of removal. The end of the slot for the shaft is chamfered to prevent the slicer from adding support inside the slot.