Horizontal spool holder with dust cover

you will need a plastic to use as a cover and some glue.
you can use 1.75MM filament as a shaft for the wheels.
the nut thread than lock the filament spool is oversized so it has a nice and smooth movement right out of the printer plate not required any cleaning.
The spool holder can support a spool hole not less than 32mm or more than 58mm.
The shaft can support any spool not thicker than 100mm