I made this spool holder design for my dryer box. It is made from two sides, two middle parts and one support beam. You can use more of them together beacuse support beam is made for that thing.
Mine is made in PLA in 20%.
Need blots and nuts to put together.
Beam is just put on and can be simply lifted to take filament out.
Print side with face down.
Print beam with things poking out in the air.
Print middle part with most flat part down.
Like this you won't need supports.
The author marked this model as their own original creation.