Vertical holes calibration

This is a model with vertical printed holes to calibrate your printer, see the difference between support / no support, etc.
To compare with / without support, in Cura duplicate the model and then use support blocker to forbid support on one of them.

The holes diameters are:

2 mm ; 3 mm ; 5 mm ; 10 mm ; 20 mm ; 30 mm ; 40 mm ; 50 mm