This original design is a really great one but I found that it was pressing against my stepper wiring a bit too tight and there was also limited room to move it around. So I added a top leg with holes that fit perfectly to use M4 x 12 screws with T-Shaped nuts.

I also made another one without holes so you could drill your own holes. The center of the holes will be 10mm from the inside corner.

I would also like to give @DutchShapes a big thank you for creating what I think is the best PSU holder when adding a second Z-screw & stepper motor to your Ender 3 Max.

Creality

Ender-3 Max

No

Yes

.2

45%

You can also use PLA