Holder for Ender 3 Pro PSU

This is a remix of https://www.thingiverse.com/thing:3349588 , but the changes done was to make it fit this PSU cover: https://www.thingiverse.com/thing:3515458. Thats why I chose to put it here so that others can find them.

I have also modified the cover to be able to mount a 80 x 80 mm fan external on the cover.