Rigid Ink 3kg Spool Adapter

This is a spool adapter for Rigid Inks' 3kg spools although they could fit other spools I'm not sure. This attaches to the 3kg spool by twisting the adapter strongly in the spool using some gripping tools. The cam shape of the adapter will tighten against the inside of the spool making it very secure.

There are two versions of the spool adapter: one with a simple plain 10mm hole in the centre ('Rigid Ink 3kg Spool Adapter') and the other is special in that it uses some of my printed bearings