Enclosure for LM2596 buck converter

I liked Crzywlf's version of this as I wanted to mount it on my ender 3 but I wanted open holes so I could get the converter back out if I needed to so I wanted holes in the bottom part which are open at the top to get the wires in and out.

The top part can be printed from the original https://www.thingiverse.com/thing:1941887 by uli