Servo and spring operated light switch cover.
thingiverse
This design is one of two variations of a servo-operated light switch cover. It is a direct replacement for a conventional light switch cover, and allows an existing light switch to be operated electronically without manipulating the A/C electrical lines, or removing the existing switch. This version does not require a custom servo horn, however, it does require a 9x35mm compressive spring, though I'm sure a reasonable substitution could be made with or without a little tweaking of the design. As different users use different microcontrollers and/or drive circuitry altogether, no specific accommodations are made in this file to house those components. However, if anyone has a particular request, I'd be happy to modify a file for you as to contain your particular hardware. Enjoy! https://youtu.be/RkN8vXt9QCs
With this file you will be able to print Servo and spring operated light switch cover. with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Servo and spring operated light switch cover..