Filament Storage Rack Connector Bracket

UPDATE (23 Feb 2026): Just refreshed this design, moved it to Onshape, and added an optional hook bracket. Please use the new version! I cleared out a whole side of a cabinet in the garage with the intention of using it for filament storage. I didn't really get into any of the solutions that were fully printed, nor did I find anything pre-made that I liked, so I made my own.I found @OutlawECHO's (from Printables) design and loved it, but didn't have the right size metal tubing to make his work. So, I re-spun their design, but using 3/4 inch wooden dowels (3/4 inch steel conduit would also work great!). I ended up cutting my dowels at 57mm for the horizontal rails, and 30mm for the vertical rails. Worked out great! I included a little test cube that you should probably print first to make sure everything will be a good fit. I printed my brackets in some spare eSun PLA-CF that I've been trying to use up, and it worked out great. I've included the STEP file and Fusion