About this 3D model

This OpenScad module defines a hollow cylinder with parameters (outside, inside, length) that can be used for filament spooling. __Using a retort stand__ It is always better to have the filament roll on top of the extruder. If you got a high ceiling or if you are moving your printer, then you need a portable solution. Together with a "chemistry stand" it will make a fine filament roll holder. Buy a retort stand, i.e. the kind that is used in chemistry labs. Yours could be made of: * Two 1.2m vertical bars (with two attached "feet" or else attachable feet). You can take shorter vertical bars (e.g. 0.9m,) but then the horizotal bar may be at your eye-level --- * One horizontal 1m bar onto which you then can glide the roll. * Two connectors for fixing the horizontal bar. It is best to buy ones that allow to lift the horizontal bar quickly. __ Other __ A hollow cylinder can be of use with several other filament spoolers.