Ender 3 S1 Pro Hygrometer and filament clip for spool holder arm

I've been meaning to design a simple filament clip that clips onto the spool holder arm on my Ender 3 S1 Pro so I can make faster color changes. I then decided it would be a great place to hang a hygrometer as well. I've included both models here. I suspect they'll fit other Ender spool arms as well, although I only have the one to design models from so I don't really know. I made the models from scratch in Blender 3.4.

I printed it in both PLA and PETG and both printed well with no supports (in the orientation I uploaded them in). The photos are all of 0.2 mm layer height using a 0.4 mm Diamondback nozzle with 3 walls and 5% infill. The green PLA is Creality Green the PETG is ZYLtech Bright Green and the red is ZYLtech Lipstick Red PLA.

If you have an issue where it's too tight you can try a couple of options. Option 1 would be to sand or file a bit of the hooks, option two would be to rescale by one or two percent in the long axis in your slicer. Finally, PETG is much more flexible than PLA, so if you're having a lot of trouble getting you PLA to fit well, try printing the model in PETG.

I hope some folks get some use from this. As always I had a lot of fun designing it and I'd love to see your makes.

Thanks for looking,

Steve