Rotate the spool 90 degrees Ender 3 V3 SE

I wanted to move the center of the filament spool mass in line with the z-axis to reduce the wobble…

You'll need two additional M5 bolts the same size as the original ones and two M5 nuts (or four M5 bolts if you want them all to be the same) First mount the handle to the adapter, and then mount everything on the beam. It will snap to it :) I printed it in PET-G, but I don't see why PLA wouldn't do. 25% infill, no support necessary.

*edit: updated - wider, better-positioned filament guide and better support for the original metal filament arm.