Spool Holder for 3UP!

Just modified the Spool holder I had designed for my Two-Up, it hung off of my desk, to fit on my 3UP. This one comes in two parts, the holder itself and a filament loop that is optional. I like the loop for preventing tangles and it keeps the filament out over the extruder.

It snaps onto 20-20 extrusion.

2/29/16 Added a version of the holder that can attach to 20-20 Extrusion that is flat on one side.
12/25/16 Found on the 2/26 version that a 1KG spool will still bend and disfigu