Soo…I start a simple laser engraving on my Ortur laser. But After like 10 min the 2 stepper motor are really really hot. I make some research and it look like it is a problem of too much electric power on motors. Buuut I can’t find the Potentiometer on the card. And i don’t know where to change that setting on a software like laserGRBL.
So if someone can help. thx Here the scheme of the card.