DIY LED Photointerrupter Holder
thingiverse
This is a simple bracket for holding a LED and dual photodiodes in a photointerrupter configuration. It can be used for a quadrature encoder, a direction-sensing photointerrupter, or an endstop. The STL is designed for 5mm LEDs and a 10mm slot, but the .scad file is customizable. Add a couple IR LEDs, a 220 ohm resistor a couple 1M trimpots, and configure the LEDs as photodiodes in photoconduction mode (revered biased), and hook it to an Arduino. Using this bracket with an optical chopper wheel from https://www.thingiverse.com/thing:5983987 creates the hardware for a quadrature encoder.
With this file you will be able to print DIY LED Photointerrupter Holder 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 DIY LED Photointerrupter Holder.