Show HN: A touch sensor you can 3D print in any shape and size

9 raunaqmb 3 6/18/2025, 8:21:33 PM e-flesh.com ↗

We just released a touch sensor that you can make at home with just a 3D printer, some magnets and hall effect sensors!

Would love to hear the community's questions, thoughts and comments.

Comments (3)

nighthawk454 · 11h ago

Wow this looks really great! Looks very cheap and accessible. Is there any minimum material thickness, beyond the height of the board plus magnets?

I’m also curious - can the modeling estimate the deformation of the eFlesh or does it just detect a 2d ‘pressure’ field? Not sure why it would be needed, but

Also, do custom geometries require training a new network?

Thanks!

raunaqmb · 10h ago

That's a great question! You probably need 2x the thickness of the magnets just so there's some amount of deformation possible. Could you clarify which modeling you are talking about for the deformation estimation?

Custom geometries will require a new network, yes!

nighthawk454 · 9h ago

Got it, makes sense! For the deformation, I mean would there be enough information to determine how a mesh of the eFlesh would be deformed, to cause the observed magnetic readings

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Show HN: A touch sensor you can 3D print in any shape and size

Comments (3)