Summary

I wanted a cover for a voltage regulator and drew this one up to improve my 3D drawing. After a few prints and changes here are the 2 files and images for the case.
Ebay has many
https://www.ebay.com/itm/1Pcs-XH-M404-DIY-DC-Voltage-Regulator-Digital-Display-Step-Down-Modular/232616705472?epid=5009605406&hash=item3629093dc0:g:cIMAAOSwAHtaSxmo

The 4 mounting holes are marked but should be drilled out with a 5/64” drill to fit a m2.5 screw
Since the cover mounting tabs are unsupported I used the support fillers for the tabs and side cooling slots.

Have fun
Tom