TapChanger-Laser

Put a laser on your TapChanger.

Screw spacing: 20mm x 40mm.

Modeled for square rods and single magnet from commit 0022aa0a.

Back side mounts spaced for EBB36/SHT36 and [OptoTap](https://github.com/VoronDesign/Voron-Tap/tree/main/OptoTap). 

Works best using a hard_pwm capable pin for the laser…

This model creates a new mount for TapChanger for LED lasers with 20mm x 40mm screw spacing, incorporating the chirpy EBB36 mount