Dremel 3D filament spool holder for 123-3D housebrand spools

This is a filament reel or spool holder for non-Dremel reels or spools. This holder holds the 1kg spools with an outside diameter of 200mm, width of 64mm and a hole diameter of 52mm (as supplied for instance by the 123-3D Housebrand) and "05kg core" core for holding the 0.5kg spools with an inside diameter of 50mm and a width of 40mm. It fits exactly inside the Dremel 3D20 printer. I fit this one on the right side of the printer so that I can both fit the standard Dremel filament or the other sp