Spool holder for Bear upgrade

This is a remix of (INSERT LINK) which removes the need for brass inserts by use of a dovetail joint. This allow for the spool holder roller to be removed in seconds with no tools required.

I also designed a separate stand that accepts the spool holder should you wish to not mount it to your frame.

2 x 608ZZ skate bearings are required for the roller and the part is bolted to the bear frame using M5 x bolts and T-nuts

The whole part is probably much wider than it needs to be and could easily be slimmed down if you wish.