Third thumb augmentation

Lounge
1

This is cool:

https://www.daniclodedesign.com/thethirdthumb

In her TED talk, she says all her arm muscles are already fully utilized, and that’s why she controls the thumb extension with her foot.

That’s not strictly true: many of us still have a vertigial muscle in our arms called the palmaris longus. That’s the muscle I’m trying (unsuccessfully so far) to have a surgeon externalize in one of my arm. It would be ideal to control this third thumb, as the palmaris longus is already a thumb abductor.

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2

I’ve been trying to find it but haven’t been able to find any actual documentation or design files to, well, actually use it.

3

It looks simple enough to fashion without plans or printer files. It’s a solid plastic part with 2 living hinges. In fact, I have a bunch of PCL plastic here and I’m almost tempted to craft one by hand.