2020 Spool Holder for CR-10

A spool holder designed to fit onto the 20mm profile of 2020, 2040, 2060 and other such aluminum extrusions. The arm fits over an into the extrusion and the retention plate goes on the other side to sandwich the extrusion. Use M5 screws and nuts of the appropriate length for the extrusion you are attaching to with a minimum of 1.2 mm for 2020, 3.2 mm for 2040, and so on.

For the axle I used a piece of wood dowel I had lying around, wrapped with a bit of duct tape to get it to roughly 7.8mm