Spool Adapter for Filament Shelf

thingiverse

I absolutely love this Filament Shelf (thing 2253244) by asteinmark! As it happens, I placed my shelf directly above my 3D printer, so I needed a way to spool filament straight from the shelf to the printer. That's why I created this adapter that makes it possible. Note to users: Please select the correct side rail STL version based on whether your shelf is built on asteinmark's Version C or D. Use shelf_mountable_spool_holder_for_Version_C.stl if you have Version C, and shelf_mountable_spool_holder_mashup_v2.stl for Version D. Huge thanks to yetisnack for pointing out that both versions are required. To assemble the adapter, you'll need 4 standard skate bearings, 4 8mm x 35mm bolts with nuts, and 4 medium-size zip-ties. Here's a step-by-step guide: * Print two side rails (see note above) and four bearing adapters (new-bearing-adapters.stl). A 20% fill seems sufficient for strength. * For each side rail: + Screw in two skate bearings into the two holes provided. Make sure they're facing the "inside" (the side with a small hub protruding around the hole). Don't over-tighten. + Snap a bearing adapter onto each bearing. + Insert two zip ties into the zip-tie slots on the bottom by each circular dowel cut-out. Note that the zip tie goes in one side and should snake around to come out the other side of the dowel cut-out. Don't close the zip-tie yet; you'll do that once it's mounted on the shelf. * Mount the two assembled rails on the shelf, with the bearings facing each other. Tighten the zip ties most of the way but not super-tight. Leaving them a bit loose allows you to adjust the distance between the rails and accommodate different-sized spools.