Parametric Spool Nut for the Universal Auto Rewind Spool Holder

So, I love the Universal Auto Rewind Spool Holder. And the "spool nut" it comes with fits my rolls of Prusament perfectly. Unfortunately, it doesn't fit my other brand of filament I use often, it's too small, so I created a parametric Fusion 360 file for other spools as I come across them.

The one I'm providing here is for 55mm inner diameter spools, which seems pretty common.

But, if you'd rather make a different size, Ive added the design as a STEP file herein.

Print instructions

I used 0.15mm layers with PETG and it came out awesome.