Filament holder

Two types filament holders.
Diameters 50mm and second type is 39 mm.
Two parts connect with each other a twisting on a carving. It is also possible to involve in addition bearings for easier torsion. But it is possible to do and without them. Iron probe with a diameter of 10 mm.
At generation can give out an error message in a detail. Upon prints and the detail works.