Laser Mount for Geeetech A10 - "Hot" swap

thingiverse

This is a somewhat universal mount for Lasers and the A10. I used a cheap 10-pin Molex connector, which is pretty shitty (not many connection-cycles), so i advice to using something more robust. The thermistor pins are shorted with a 6kOhm resistor to stop failsafes in Marlin/Klipper. The GT2560 PWMs the Fan by _ground_, so the +12/+24 rail is not applicable for the laser's PWM input. This design uses the fact that most PWM inputs have an internal Pull-Up, so it still works, but is inverted. So 255 PWM results in OFF, 0 PWM in ON. Keep that in mind, these lasers are dangerous! In the black shrinking-tube is a 2A step down for the native 24v to 12v. The Internal 12v regulator in the GT2560 is not able to deliver > 500mA!