I printed the 590956 Spool Mount and was very pleased until I tried to use it. It immediately spread apart, dropping the spool of filament. So, I created these clips to secure the Spool Mount. They attach by dropping through the open web in the Spool Mount and securing with a couple 4" wire ties. I designed these for use with 65mm wide filament spools, and included a hole in the center of the front clip as a filament guide. Enjoy!

UPDATE 01-01-15: I remixed this item to include an adjustable fan (or anything?) mount! See the instructions for build parts, and check out the images for dimensions.

The ones I use are for 65mm wide spools. They were printed in PLA at 0.3mm layer height with a 0.4mm nozzle at 200C on a 50C heated bed. They are attached using four 4" wire ties.

UPDATE 01-01-15: The remixed version with the fan brackets needs a few bits to assemble: M3x12 screws and nuts x4 and whatever hardware you want to use to mount your fan. This will fit most fans - I am using a fairly large, 100mm fan to cool the entire print bed without ducting getting in the way! Works like a charm during printing and even cools the bed to release the parts without scraping!