New CNC Shield Engraving Machine / 3D Printer / + 4 Pcs A4988 Driver,Default NO

Features:

Use removable A4988 or DRV8825 compatible stepping driver.

The extension board can be used for engraving machine or 3D printer driver.

Compatible with GRBL 0.8. Open-source firmware operated on converting G code command into stepping signal.

PWM spindle and direction pin, 4 shaft support (X, Y, Z, A - you can copy X, Y, Z or use pin D12 and D13 customize firmware perform complete shaft 4).

Compact design, stepping motor can connect 4 pin connectors or be soldered.

This is a set of disassembled part, and you need basic soldering skills to solder them together.

CNC Expansion Board:

Color: Green

Size: 68 x 53 x 18mm / 2.67 x 2.08 x 0.7"

Voltage: DC 12V to 36V (only DRV8825 driver can handle up to 36V, so please consider voltage for power supply)

4pcs A4988 Driver:

Size: 20 x 15mm / 0.78 x 0.59"

Thermal Shutdown Circuit: Yes

Cross Current Protection: Yes

Ground Fault Protection: Yes

Short Circuit Protection: Yes

Compatible Logic Voltage: 3.3V and 5V

Five Step Modes: Full, 1/2, 1/4, 1/8 and 1/16

Mix with slow current attenuation model.

Internal UVLO and low RDS (on) output.

Automatic current attenuation mode Detection/Select.

Phase-in rectifier, low power consumption.

Warning: Connecting or disconnecting stepping motor while driver is powered on might damage driver.

4pcs Heat Sinks:

Size: 8 x 8mm / 0.31 x 0.31"

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