Package include:

1x 3 Axis GRBL control board V3.4

1x GRBL offline controller

1x USB cable

Specification:

Connection: USB (USB-CH340)

Support Software: GRBL controller, UniversalGcodeSender

Input voltage: 12-24V

Master chip: atmel 328P (arduino nano)

Spindle drive chip: MOSFET

Spindle PWM speed: Support

Support stepper motor: 12V, maximum current of 2A. (Any stepper motor 42, 57)

Laser engraving: Support

Power Interface: 5.5-2.5mm DC interface

Advantage

1.add the outer casing

2.add the power button switch

3.Use integrated imported stepper motor drive

4.Add the fan port to force heat dissipation;

5.add offline recognition

6.Improved USB interface

GRBL offline controller function:

1. Manually control: manually adjust X, Y, Z axis location as engraving starting point, manually open or close spindle, manully open or close cooling fan

2. File engraving: after off-line controller save file, it can connect the GRBL control board and process engraving, no need to connect PC computer

3. Save file: after the off-line controller connect PC, it will be recognized as USB, large capacity storage device, can access engraving file directly.

SD shows it is SD card condition, turn on power supply after insert SD card, otherwise, it won't work. SD card capacity 4G could be recognized.

Press X- or X+ button to switch

Control：Press confirmation button to access manually controlling page

File：Press confirmation button to access file page

Set：Press confirmation button to access setting page

On the off-line controller, buttons control corresponding actions.

SPN is spindle controlling,should press SPIN.

Fan is fan controlling, should press SMOD.