Spool Winder for IEMAI Spools, Sturdy Hex

I print a lot of IEMAI brand filaments so I made a respooling tool specially for the IEMAI spools. Print the drill hex on it's side with 100% fill for strength, the main spool holder can have sparse infill with at least a couple walls. I printed in rapid PETG for a little flexibility, two of the spool holder arms have little clips at the end that help keep the spool on.

The spool won't go all the way onto the winder if the filament sticks through the inner wall, so I just tape it down instead.

STEP files included so feel free to adapt it to fit other brand spools. It may very well work with other generic plastic spools too: the ID is 2.44" and the OD is 2.9".