Hole gauge for 3D design

thingiverse

A handy gauge for measuring hole dimensions in 3D design. Typically, modeling a hole in your part will result in it being smaller in the print. This gauge doesn't accurately measure diameter but rather sets the dimension for fitting screws, bolts, rods, or other round items into holes. I recommend printing one each for different print settings and possibly another lying flat for vertical holes and standing up for horizontal holes to see how well you can print without support. There are two versions: the default with engraved lettering and the "Emboss" version with embossed lettering that's great if you change filament for the final layers to print numbers in a different color.