Bluedophin GRBL 0.9J USB port cnc engraving machine control board 3 axis control laser engraving machine board

Description

Specification: Connection: USB (USB-CH340) Software: GRBL controller, UniversalGcodeSender Master chip: atmel 328P (arduino nano) Stepper motor driver: A4988 Spindle drive chip: MOSFET, the highest 60V (recommendation within 48V, current :within 10A ) Support stepper motor: 12V, maximum current of 2A or less is recommended within 1.5A and additional heat. (Any stepper motor 42, 57) Laser engraving: Support