Modded XM3 arms

Thickened the part that always breaks.

added mini bridges to support printing/prevent bed adhesion issues. fixed unprintable overhangs. Changed inside support direction so layer lines don't line up at thinnest part. removed usesless ribbing.

I hate the original and wanted files. Probably going to reCAD these at some point.

https://www.printables.com/model/503217-sony-wh-1000xm3-replacement-arm-left-side