Overhead filament holder for TAZ 4
I had extra 3/4 copper pipe laying around and decided to use it to hang few spools of filament above my printer.
You can change hole diameter or make it square in Freecad - just modify first sketch there to use what you have.
I made hole diameter slightly larger to accommodate my printer's tendency to make holes smaller - as a result pipe fits with slight resistance, which makes it hold whole assembly very well.
I printed it with 50% infill and 0.5mm wall thickness. I also tried both 15 and 10 mms part thickness - both seems to work well for me, but i feel like 15mm is better. Again, you can adjust it all in Freecad.
I got some warping issues with corners, so you might wat to add brim.
You need to print at least two of these.