test calibration

Rectangle : 20x30x20 MM.
XYZ letters :2mm over and under the surfaces.
Ovehang tests: 30,45, 60.
Arc: 3, 5 , 10 MM.
Bridge: 5, 10, 15 MM.
Sphere: 10 MM.
Retract: 3 priramids
Inverted cone:10x13.43 MM
Extruded bars: 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 MM
And more.