About this 3D model

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.