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The CNC Shield V4 is an expansion board that plugs onto an Arduino Nano, turning it into a driver interface board for engraving machines and small 3D printers. It carries 3 stepper motor driver channels, one each for X, Y and Z axes on a typical CNC or engraving setup, and needs only 2 IO ports per motor from the Nano itself, since the plugged-in driver modules handle the more detailed step and direction signalling.
It supports 2A, two-phase, four-wire stepper motors, a common configuration for small CNC routers, laser engravers and similar motion-control machines, and is compatible with micro-drive laser engraving setups as well as standard 3-axis CNC machines.
The shield is built to work with GRBL, the widely used open-source firmware for CNC motion control, which handles the G-code interpretation and step generation once flashed onto the Arduino Nano. Power comes through a DC5V interface on the shield itself, while the input supply for the board accepts 7.5 to 12V, and released digital IO plus an I2C interface give room to add limit switches, a spindle relay or other accessories beyond the three motor axes.
It measures 73mm by 59mm by 12mm and weighs 32g, a compact size that sits neatly on top of the Nano without adding much bulk to a small CNC controller enclosure.
Hobbyists building a small CNC router, laser engraver or similar 3-axis motion project around GRBL firmware and an Arduino Nano will find this shield a straightforward way to add driver sockets without wiring three separate stepper drivers by hand.
3 stepper driver slots, typically used for X, Y and Z.
GRBL.
An Arduino Nano.
2A, two-phase, four-wire stepper motors.
7.5 to 12V, with a DC5V interface on the shield itself.
| Brand | Generic |
|---|---|
| Firmware | GRBL |
| Selling unit | PCS |
