Spool Insert

This is a set of spool inserts that should cover nearly all spool sizes you will encounter (including Hobby King own brand, 3D Warhorse and E-DA filament). The spools that are narrower can be spaced out with other spool inserts and/or the washer. No supports or raft or brim and 10 percent infill with 4 walls and 6 top and bottom layers. Takes about 25 - 45 minutes to print for each one (and remember you need two of each). I would advise to print them one at a time to avoid stringing and decrease travel time.

Each time I got a different brand filament I printed another size (the bigger ones I started getting creative with the shape to save filament) but now with this whole set I have not needed any others as of yet. If you add the filament spool insert holder (SpoolExtenderXL) to the side of your spool shaft you can store your most used ones.