Simple caliper

A simple set of calipers with 160mm arms. I designed these to be printed at 0.2mm layer height to get clean threads. The tolerances are very tight. If you are using Cura, be sure to set the slicing tolerance to Exclusive. Alternatively you can increase the scale of the wingnut in the XY directions by one or two percent.

Printing the threads in the supplied orientation (parallel to the XY plane) offers plenty of strength as there is no need to tighten the wingnut significantly due to the conical base of the threaded portion of the arm.

Please consider posting your make if so inclined.