GRBL 1.1 A4988 4 Axis Stepper Motor Control Board With All Optical Isolation USB Driver For CNC Laser Engraver Supports 1-10V VFD And 48V 500W DC Spindle Heavy Duty Build With Stable Performance And Easy Hookup

4-Axis GRBL Controller Board - 1 piece, optical isolation
✔️ USB-ready controller with optical isolation and 48V spindle support

This four-axis GRBL 1.1 compatible controller blends all-optical isolation with TTL/PWM laser control, designed for CNC machines and laser engravers that require offline operation and high-current spindle support. It’s built for heavy-duty hobbyist rigs and workshop CNC setups.

✅ 4-axis GRBL 1.1 firmware
✅ All-optical isolation immunity
✅ Can be connected to a high-power driver
✅ Supports 48V 500W spindle work
✅ 16x motor subdivision
✅ XZY limit interface
✅ Supports offline operation
✅ TTL/PWM software adjusts laser power
✅ Can connect 300W spindle, 775 motor, 2-pin laser module, 3-pin laser module, fan, offline
✅ Color: grey-yellow
✅ Includes: 1x control board, 1x USB data line

💡 What is a GRBL controller board used for in CNC and laser engraving setups?

It's a handy, compact way to drive multiple axes and manage spindle or laser power in a single unit.

- GRBL controller board for CNC engraving and laser work enables precise 4-axis motion
- Integrates with high-current spindles and laser modules for offline operation
- Works with TTL/PWM outputs to dial in feed rates and laser power
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