DIY Flexible keyboard without using silicone

A DIY flexible keyboard project; instead of using silicone, a SLA highly flexible resin is used.

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During the design of my new LCD 3D printer and resin development, one of the most interesting materials I have been experimenting with is this highly flexible resin, that 3D prints quite fast and keeps a very high detail.
I immediately started to think about many interesting projects based on this materials, including soft actuators, and a DIY flexible keyboard project, where instead of using silicone, this SLA highly flexible resin is used.
The benefit of this solution is that silicone parts are expensive and time consuming, while this method can lead to a nice build in very short amount of time.

The front part is supposed to be 3D printed with flexible resin. Bare conductive ink is applied on the 3d printed "pill" that will be touching the PCB. A flexible PCB would allow a bendable, rollable keyboard.

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beroch lee wrote 09/05/2023 at 07:26 point

I need an xvkbd layout for my smart phone I make them out of super glue and plastic bags now and it's very messy.

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biff gridley wrote 06/13/2021 at 04:50 point

What specific flexible filament did you use for this project?

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Chris O'Riley wrote 05/08/2019 at 00:41 point

Very cool, judging from the photos, your printer looks outstanding!  

Have you texted it with a functional PCB yet?  I'm curious how the conductive ink will hold up with repeated pressing of the keys - how well does it adhere to the button part...  

Definitely going to follow your work, as I've dreamed up more than a few projects that a custom keyboard would be required.

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karthik ram wrote 04/25/2019 at 06:52 point

Hi! I working on a robotics project... Check it out! Do drop a like too :P

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