Harbor Freight "Pittsburgh" dial caliper thumb roller holder

This is a replacement bracket for the Pittsburgh dial caliper's thumb roller. (It also works on many other Chinese-origin dial calipers, including a no-name metric one I got on eBay from Malaysia.) There are other versions of this part available on Thingiverse that are more elegant or more faithful to the design of the original part, but I've tried instead to design a bit more strength into this one, at the expense of appearances.

**Since Cura does a bad job of supporting the inside of the U