Filament Quick Clamp

This is a rubber band powered filament clamp-on to prevent the spool from unraveling when stored.

• Mechanism is fully print-in-place.
• Add rubber band for the spring loading. I reused some that came with a bunch of asparagus.
• There is a version with filament clip and a classic one without clip. I recommend the version with filament clip.
• If you go clip-less, insert filament between rubber band and clamp for extra security. This is if your filament want to escape under the clamp.
• STLs with different sizes available:
  • XS: 39 - 52 mm
  • S: 51 - 64 mm
  • M: 55 - 68 mm  (this size works fine on my Prusament and eSUN 1 kg spools)
  • L: 64 - 77 mm
  • XL: 73 - 86 mm

Printing tips:

• Don't use brim as it might fuse the first layer.
• Don't use supports, the model relies on bridging and safe overhangs.
• Use at least 3 perimeters so that the bridging has something to attach to.
• Give it a squeeze to free mechanism in case it is stuck after printing. It should release with a click, pull it back and forth a few times and it should move freely.
• PLA can be slippery. Apply some duct tape to the clamp ends if more friction is needed.

Also have a look at my alternative model called Grippy Filament Clip Clamp: https://www.printables.com/model/573375-grippy-filament-clip-clamp