Spool Rewind Spring for Wire Shelving

I saw VincentGroenhuis Auto-Rewind Spool Holder and had to make it work for me. The spring rewind works flawlessly. I had to remix for the wire shelf hangers that I use.
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Wire Shelving Filament Spool Holder by CallJoe can be found here:
https://www.thingiverse.com/thing:2911934
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I created a hub to snugly fit the hole in the spool holder with a keyed hole to accommodate the spring hub. I used the bearings form the Prusa provided spool holders that come with the MMU2 for the spool hub

Huge kudos to both makers VincentGroenhuis and CallJoe for the parts I used in this re-mix

**Upgraded Version posted here: https://www.thingiverse.com/thing:3307107