Spool holder

This spool holder design make it easy to change filament-spools. No screws or other fixtures needs to be losend to remove the spool. It fits all sizes of spools: 300 g, 1 kg and 2 kg.
It is designed to be mounted on top of a wanhao i3 copy (Malyan M150)

Bearings: 22x10x6
Threadred rod: M10 x 180 mm
Nuts: 8x M10