Ender 3 Pro Y Motor Mount

I remixed the original model to use M5*10 button head screws to mount to the frame. I also included a slot to fit the M3 screws better to mount the motor. 

To use the mount, use 4 M5*10 button head screws to mount it to the frame. Then mount the motor with 4 M3*25mm socket head screws for the stock Ender 3 motor (you have to print the included spacer for this) or 4 M3*16mm socket head screws to mount a generic motor without press-fit GT2 pulley (no need for the spacer as you can adjust the pulley).

The mount, and spacer, are symmetric as the original version so the motor can be mounted on either side as needed.

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