Stepper motor mount for 28BYJ-48

thingiverse

Although the original's motor cylinder fit perfectly, my motor's mounting ears are slightly wider and didn't match up. So, I expanded the slot for the ears a bit. The screw holes are precisely 4mm in diameter, which is ideal for threading an M4 bolt through the mount into some backing material. However, in my case, I wanted the M4 screw to have a tight fit in the hole, so I narrowed it down to 3.9mm. I also created a duplicate with holes at 2.9mm if you prefer to use an M3 screw instead. As for the driver holder, my driver PCB is slightly shorter on one axis and longer on the other. Since I don't need this part, I haven't made a replacement. Nonetheless, be aware that, depending on the manufacturer, the driver mount may require adjustments to fit properly.