Shure SM58 Mic Battery Cup Replacement

The battery covers or cups on the wireless Shure SM58 easily crack and eventually break around the threads if you twist the cap on a little too tight.
This started as a remix of pmcpajadan's battery cover but I decided to re-implement it in JSCAD to make customization easier. Unlike most SM58 mic cups, this has a flat bottom for printing without support. The tolerance is pretty tight so I included the OpenJSCAD file just in case it needs to be tweaked.
To make sure I had the thread tolerance