<p>Latest CNC Shield Version 3.0</p> <p>GRBL 0.8c compatible. (Open source firmware that runs on an for that turns G-code commands into stepper signals)</p> <p>4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)</p> <p>2 x End stops for each axis (6 in total)</p> <p>Spindle enable and direction</p> <p>Coolant enable</p> <p>Uses removable A4988 compatible stepper drivers. (A4988, DRV8825 and others)</p> <p> to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1\/32 micro-stepping )</p> <p>Stepper Motors can be connected with 4 pin molex connectors or soldered in place</p> <p>Runs on 12-36V DC. (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)</p> <p>Colour:Photo Color</p> <p>Material:plastic+metal</p> <p>Package Contents:</p> <p>1 x CNC Shield V3.0</p> <p>1 x for UNOR3 Board</p> <p>4 x A4988 Driver</p> <p>4 x 4401 Stepper Motor</p> <p>1 x USB Cable</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p> <p>This product is not produced by the original manufacturer. It is a replacement that is perfectly compatible with this model and is produced by the accessories manufacturer. It is not an original product produced by the brand factory.</p>