Thickness measuring jig for dial gauge

Quick draft of a frame that holds a 8mm stem dial gauge to measure material thickness, especially non-flat parts. 

Uses 3mm bolts. 

I didn't spend any time to design capped nuts and refine the design. I've added the .dwg file if anybody wants to develop the design further. 

Designed in 2 pieces so that the print orientation doesn't weaken the clamp around the dial gauge stem.