The original spool holder is great but only if it is in the middle of 2020 aluminum extrusion. I had it mounted between 2 brackets on the Folgertech FT-5 and the spool kept catching on bolt heads. I designed this with a fence on it to keep it away from the bolts. Any spool measuring less than 81 mm wide will fit this spool holder.
Update 6/17/17: Added a 100mm length version for those short fat spools.
The author marked this model as their own original creation. Imported from Thingiverse.