Ooze/Retraction Test 1.6mm Wall thickness

I redesigned the Ooze/Retraction Test by wemperor so that it now has a wall thickness of 1.6mm.

This way you can set 2 perimeters with a width of 0.4mm and it will print straight lines without any jagged infill between the outer and inner perimeter. This should results in much steadier, cleaner and faster printing.

Thanks to @wemperor for designing this great Test.