UNO Cnc Shield V3 Engraving Machine A4988 Grbl Compatible 3D Printer

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• This Expansion Board As A Driver Expansion Board, Can Be Used For Engraving Machines, 3d Printers. It Has Total Of Four Slots, Can Drive Four A4988 Stepper Motor. Each Stepper Motor Only Need Two Io Ports. In Other Words, Six Io Ports Can Be Well Managed For Three Stepper Motors. Very Convenient To Use. Latest Arduino Cnc Shield Version 3.03
• Grbl 0.8c Compatible. (Open Source Firmware That Runs On An Uno That Turns G-Code Commands Into Stepper Signals) 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) 2 X End Stops For Each Axis (6 In Total)
• Compact Design. Stepper Motors Can Be Connected With 4 Pin Molex Connectors Or Soldered In Place. Runs On 12-36v Dc. (At The Moment Only The Pololu Drv8825 Drivers Can Handle Up To 36v So Please Consider The Operation Voltage When Powering The Board.)
• Spindle Enable And Direction Coolant Enable Uses Removable Pololu A4988 Compatible Stepper Drivers. (A4988, Drv8825 And Others) Jumpers To Set The Micro-Stepping For The Stepper Drivers. (Some Drivers Like The Drv8825 Can Do Up To 1/32 Micro-Stepping )