Originally on Thingiverse: https://www.thingiverse.com/thing:5036589
This replaces the original black cover on the PSU's for Creality Ender 3 (non-slim version).
The PSU will stay mounted where it is originally, but the power cable now routes to the back.
I added rails on the bottom for it to lock in with the bottom aluminium extrusion but it will require supports.
You can print the supportless version if you don't want supports (which just gets rid of the rails)
The sheet metal for my PSU is also folded on one side but not the other, so I raised the area touching the non-folded side a bit to even it out.
I designed these based off the fusion 360 file for the Ender 3, although keep in mind your measurements for the holes/rails may differ slightly.
STEP file is there for edits.
The author hasn't provided the model origin yet.