I made this test body to quickly test new printer settings and optimize for new filaments. It tests for dimensional accuracy, fine feature prints, circular overhangs, bridging, stringing, bed adhesion, surface quality and hole size. Just measure with a caliper, all dimensions are either full or half millimeters. Deviations from this are print inaccuracy. Main advantage of this model: it prints in a few minutes and doesn't require waiting hours for the next iteration! Here is the original Autodesk Fusion 360 model: http://a360.co/1BbjpzP For other tests I also made simpler models. One without the bed adhesion test buds and one very simple super quick to print one.