Round test

This is for testing round / circular shape. The V2 has a inner "pizza slice" poitning to the home direction by default so you can use it as a cue.

**V2 :**
Size : 20x20x5 mm
Wall thickness : 0.8 mm
Optimal slicer settings : 0.25 mm layer height, 2 wall lines (0.8 mm), 0% infill, 2 bottom layers, 0 top layers.

**V1 :**
Size : 20x20x10 mm.
Wall thickness : 1 mm.