stepper motor nema 34 Add a laser module to Reprap Guru Prusa i3

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stepper motor nema 34 Add a laser module to Reprap Guru Prusa i3

I have a Reprap Guru Prusa i3 v2 3D printer. Here is a link to the 192 MB manual. And here is the link to the resources page for the Reprap Guru. Page 58 of the manual discusses electronics.

I purchased a 5.5 W laser from an online resource . It has its own controller module. It has one connector with 3 pins

  1. 12 V
  2. Gnd
  3. PWM

I want to now connect the laser module in-place of the 3D printer nozzle. I have been able to install it physically, but not sure how to connect it to the Reprap Guru Prusa i3 board.

I am not an electrical engineer, but I am capable of connecting wires with clear instructions. Any pointers on how to connect this module to the 3D printer board is appreciated.

Updates:

  1. The board of my 3D printer is an Arduino Mega 2560 board.
  2. I have been able to power the laser on using the fan connections and it can burn stuff (so it works). I have connected to the D9 pins
  3. Now need to figure out where to connect the PWM from the laser module to the Arduino Mega 2560 board

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