*The extension board can be used for engraving machine or 3D printer driver.
*Compatible with GRBL 0.8. open-source firmware operated on Arduino UNO, 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.
*With high quality and durable performance.
*100% brand new and in good condition.
*Color: As pictures show
*Heat sink dimension: about 8 * 8mm
CNC expansion board:
*Voltage: DC 12V-36V(only DRV8825 driver can handle up to 36V, so please consider voltage for power supply)
*Board dimension: about 68 * 53mm
*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
*Dimension: about 20 * 15mm
*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.
1 * V3 Extension Board
4 * Drivers
4 * Heat Sinks
Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.