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Some systems I design are large and may have multiple keypads. Usually a main interface, then other small units for minor mech adjustments or mech calibration.
As keypads are usually tooled and die cut, even prototypes are very expensive. Having the ability to quickly 3D Print a flexible keypad can make prototyping faster, less costly and allow for a true Form-Fit-Function evaluation.
The .stl is not meant to be printed on it's own. Rather it's meant to be "step-and-repeated" in an array or placed in a desired pattern.
It is then Boolean added to a box/rectangle and then rotated such that the buttons are on a side wall.
Then you simply print the new .stl as a "hollow" part.
.4mm nozzle or smaller and .12mm layers
Print at 1 perimeter and 2 solid layers. The 2 solid layers act to hold the part to the table and the 1 perimeter is the thickness of the keypad.
After the print has reached the height you need, just stop the print.
You can then cut off the side with the keys using scissors as well as a desired outline.
The pliability of nylon is used in the flexible "S" joint around the key.
Because there's no delamination in the 618 nylon, the keypad is completely flexible and won't crack or frey at thread boundaries or split apart over time.
Most of my designs use a build up of :
The material can be found here www.taulman3D.com
Flexible Keypad Button/s in Nylon by Taulman is licensed under the Creative Commons - Attribution - Share Alike license.
So what's this mean?
We're sure Taulman would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!