Freetrack Clip Glasses Mount

Minimalistic Freetrack/TrackIR LED Clip with glasses mount. Fits any glasses temple. Left and right sides models.

**My setup:**

- 3x5 mm IR transmitting LED
- Power supply voltage: 5 V
- LED voltage drop: 1.3 V
- LED current: 50 mA
- 22 Ohm resistor

**Assembly guide:**

1. Print a model
2. Do some calculations. Using [this LED array calculator](https://ledcalculator.net) I found that my setup requires a 22 Ohm resistor
3. Solder everything according to the calculator's scheme
5. Increase the infrared beam angle by filing each LED lens almost to the metal part. I used Dremel and 400-grade sandpaper for the matte finish
7. Set LEDs into places. No glue is required. But you may use a drop of hot glue for each LED
9. Attach the clip to the glasses with cable ties. I also used a heat shrink tube underlay to prevent scratches
10. Set the model dimensions in your head tracking software as in the last photo
11. All done!