Yet another spool holder

Just something I quickly hacked together to be able to feed my printer from a second Robox spool which is not in the printer.

I had some ~10mm plastic pipe laying around, so I used that to connect sides of the holder together and also as an axle that goes through the spool.

Version 2 of the middle path has teeth to grap the reel. This way the same setup can be used to spool different filaments on a Robox SmartReel using a drill.

Version 3 has a slot to accommodate for manually winching filament on the spool. Version 4 has a square hole through the whole adapter. A crank arm and related parts are only needed for this.
A round axle and robox adapter is recommended is crank arm will not be used.

I also added a taller version to accommodate for bigger 1kg spools. New spool adapters fit 3DPrima, Colorfabb and Taulman spools. These are not mandatory as the center of these spools is already a round hole (unlike Robox SmartReels which pretty much require an adapter for smooth u