{"data":{"make":{"id":"944298","created":"2023-06-27T10:37:29.878847+00:00","edited":null,"deleted":null,"isMake":true,"printer":{"id":"67","name":"Alfawise U30","__typename":"PrinterTypeType"},"parent":null,"author":{"id":"676931","handle":"Fabryrigo","verified":false,"dateVerified":null,"publicUsername":"Fabrizio Rigotti","avatarFilePath":"media/auth/2a0a1507-3648-4b67-8cc7-b4f19109f72c.jpg","badgesProfileLevel":{"profileLevel":12,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"images":[{"id":"799988","filePath":"media/comment_images/6b/5782a1-78dc-4ae1-9590-6aab5bd0fc9a/image.jpg","rotation":0,"__typename":"CommentImageType"}],"mentions":[],"text":"","rating":null,"likesCount":0,"liked":null,"membershipAgeMonths":null,"membershipTier":null,"__typename":"PrintCommentType","model":{"id":"506814","slug":"filament-quick-clamp","name":"Filament Quick Clamp","authorship":"author","club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"4.7419354839","myRating":null,"ratingCount":31,"description":"

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

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Filament Quick Clamp

Filament Quick Clamp

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