Check if your $32 setting is correct and ensure the TTL wire is on the correct pin. If you need more specific help, I can guide you through: The exact jumper settings for your specific stepper drivers A step-by-step guide for configuring LaserGRBL How to wire limit switches to prevent crashes

Insert your stepper drivers into the slots for the X, Y, and Z axes.

Connect your DC power supply to the screw terminals. Double-check the polarity (+ and -) marked on the board. Most setups use 12V for lasers and 24V for CNC motors to get better torque. 2. Stepper Drivers

Once connected via USB (usually at ), you may need to adjust these settings in the console: $100, $101, $102 : Steps per mm for X, Y, and Z. $32=1 : Enable Laser Mode (if using a laser).