This spool holder can be printed without supports, requires 0 screws and only needs either 4 608 bearings or 629 bearings:
Check which bearings you have:
608 - ID:8mm, OD:22mm, W:7mm
or
629 - ID:9mm, OD:26mm, W:8mm
And print the two matching files one “6xx Rollers” and “6xx Sides”
NEW: Now with optional 3kg roller for those bigger spools. Also has groves to support a standard spool or a 750/500g narrow spool
The author marked this model as their own original creation.