Custom hanging paint modular paint stack shelves

This allows for the creation of custom shelves that work with hanging paints and the Modular Paint Stack (MPS). If you're not sure what the MPS is, see the Modular Paint Stack core components. To use this, set the following values paint_neck_height - This is the distance from the underside of the paint cap to the “shoulders” of the body of the paint tube. When in doubt, so slightly smaller than your calipers say. Note that if you go 3mm or larger, the default print settings typically work well. If you go less than 3mm, consider using the “high strength” settings paint_neck_diameter = This is the diameter of the neck of the paint tube. Tighter values keep the tube in place better but can increase the friction in taking the tube out or putting it back in. Starting with the caliper measurement and rounding up to the nearest tenth of a millimeter usually works well. paint_count - How many tubes of paint to put on the shelf. Since the shelves are based on Gridfinity units which are 42mm, yo