Filament Clip - Mini Curved Version 4 (two variants) - IMPROVED AGAIN AGAIN!

NOTE : Check for newer and better(?) versions of this clip by searching for “filament clip mini curved” : 

https://www.prusaprinters.org/search/all?q=filament%20clip%20mini%20curved

NOTE 2 : My earlier versions of this clip worked pretty well, I think, but there is always room for improvement. My methodology is to continue to use the earlier versions as long as they do the job, and print the latest version when I need more of them.

This version of my filament clip has some subtle design differences which I hope will provide a couple of improvements :

1. Better grip on filament reels over a wider range of rim thicknesses.
2. Improved grip on the filament end.

As an experiment, I am also providing two variations of this new design, one with three “spring layers” and one with two layers (see photos). 

Of course you can try both versions, but I seem to be getting good results with the two-layer version (which also prints faster). 

Print Instructions

Print in PLA using the 3mf or gcode files provided. In general :

• perimeters = 4
• infill = 0%
• orient edge down on the build plate

I printed on a smooth plate and did not use a brim. I recommend not using a brim because it is a pain to remove.

CAD

The OnShape 3D CAD files for this are here :

https://cad.onshape.com/documents/ef9efdbfeb66be493ae66ab3/w/17f5f483d6fe4faa11029354/e/b39ff17622cddb27d563acf5