I am failing to connect my laser to ramps . When I plug my PWM laser pin onto the Z limit on a CNC shield as I should. It works just fine. It also works when plugged onto the 3 pin connector on the board used to drive my 3018 CNC. So it's not the laser........... I am running GRBL MEGA 5X. When I connect the laser to 12v + and - the laser fan powers up. I then have the PWM connection to make..by jodougie2812 - General
My laser has 3 wires, positive negative and PWM How are these connected to the Ramps 1.4 board. Any advice appreciated, thanksby jodougie2812 - United Kingdom RepRap User Group