This spool holder prints in one standard-sized bed and supports most spools. I designed it to take advantage of different layer orientations so that you can carry high weight spools easily, I've tested with 2Kg spools and it doesn't flex a bit. Works on tables up to 45 mm thick. To lock the parts together cut stick filament in the tapered holed and they will lock it in axially.
The threads are good and don't bind.
happy printing friends.

No

Yes

20

Only support on the bed