Adjustable Suspended Filament Spool Holder

myminifactory

Human: Only items needed in addition to the printed prints are a pair of long rubber bands. Each clip and hanger should fit snugly on a 2x1 wooden board. I wanted this spool holder to have the filament perpendicular to the shelf as I felt that with the spools parallel, there would be awkward tension or additional stress as the filament traveled down towards the printers. The "adjustable suspended" feature comes from using rubber bands. Rubber bands serve two main purposes: they act as adjustment points for the position of the holder relative to the shelf and as "tension relievers," so that most of the stress is absorbed by the rubber bands rather than the fixed printed parts held on the shelf. Included are two options for support arms in terms of their length, depending on how far forward the printers are from the shelf. Option A is the shorter one of the two. There is also a 1-inch diameter rod; the rod is optional as the original plan was to use a dowel rod to save material cost. The option is there for those who can't find a suitable dowel rod. I recommend printing the rod horizontally for added strength. Edit: August 17, 2018 - I included a modified version of the bottom support clip and also an alternate version of said clip. The modified version (newer version - bottom support clip) shaves off some materials from the original version and the thin part in the center makes it easier to attach or remove from the support arm since you can pinch one end and flex the other end open. The alternate version (alternate version - extended/offsetted support clip) is designed as the name suggests, extending the support arms outwards so that they would not likely collide with any spools behind the clips. Post-processing may be required. Part of the 3DPN Design Challenge.