Damn.
Tried to print an #OpenBall by ChrisBorge l with a #FractalVice today in #FreiLab .
But #PrusaSlicer refused to load
swivel large.stl and swivel small.stl .
Only swivel mid.stl can be opened.
https://www.printables.com/model/823122-open-ball-v1-ball-vise-system