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Simple carabiner or key chain clip — image 1
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Simple carabiner or key chain clip

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Carabiner using a compliant spring

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A simple carabiner using a compliant spring mechanism to secure the latch.  Good for keychains and backpack baubles.  I'll probably make a bunch of different variations on this theme this year as I play with compliant mechanisms in Shapr.

I recommend printing in PETG or something with a little bit of natural give to allow for the thing to flex without deforming under repeated use.  The blue one shown was printed in Teal Kinluot PETG. 

I also added a version with the clasp positioned out so that when in proper alignment there is quite a bit more tension on the spring, keeping the clip from opening up accidentally.

I included the Shapr3D file in case anyone wants to do any modifications to it.

Enjoy!

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