Hole Diameter Tester

thingiverse

As we all understand, 3D-printed holes frequently come out smaller than intended. This Thing consists of 10 holes designed with diameters precisely measuring 10, 9, 8, 7, 6, 5, 4, 3, 2 and 1 millimeters. Print it out and use calipers to see the amount of shrinkage your printer, slicer, and filament combination gives at each size. Alternatively, use the print as a guide to determine which hole fits perfectly over a particular screw or shaft, allowing you to know exactly which diameter you need to use when designing.