I have gone through the posts here and on facebook (as well as other places) and am still stalled out. Hoping I can get some advice. I believe I have wired up my 5W Banggood laser correctly having followed the Longmill laser tutorial as well as changed grbl settings to what others have used with success. I have power to the fan and a beam when I click the “positioning” button on the laser driver board (light on board goes from solid red to blinking) and after connecting to Lasergrbl I am able to jog the machine and have it jog when running a file but the laser doesn’t fire. Also, not able to get the beam when using Lasergrbl custom buttons. Based on this, I am assuming I also have the wires (polarity) correct to the PWM otherwise the machine wouldn’t jog. Am I right in assuming this? Thanks in advance for any advice you can shoot me. Cheers!