Best Darn Anycubic i3 Mega Spool Holder

So I was looking for a top mounted spool holder for my Anycubic i3 Mega. I wasn't happy with the side mount as I kept banging into the spool. I also didn't want to have to buy bearings or rip a hard drive apart. So I have remixed the "Universal stand-alone filament spool holder (Fully 3D-printable)" by Creative Tools. I was amazed at how smooth this spool holder is for printed wheels. I also made a smaller guide arm for just 4mm bowden tubes. You can use the original if you like.

Anyway.. I