LUNYEE USB GRBL Controller Driver Board 3 Axis Stepper Motor Double For CNC Engraving

Friendly Reminder:

1. The spindle motor and laser cannot be connected at the same time

2. The offline control board and the USB data cable cannot be connected at the same time

3. Turn on the power after the electrical connection is completed

4. The positive and negative of the input power must not be reversed, and the reverse connection will burn

5. The 48VDC interface cannot be connected to the switching power supply, and the voltage that can be passed through the DC seat of the control board cannot be greater than 5A