CNC xPRO V3 Stepper Controller with 4 on-board Drivers

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CNC xPRO V3 Stepper Controller with 4 on-board Drivers

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CNC xPRO V3 Stepper Controller with 4 on-board Drivers.

From Spark Concepts in the US we have this open source all-in-one controller. It's the simplest way to get going on the electronic side for your build. The board combines the motion controller with 4  stepper drivers. It run open source software "grbl" - so no additional cost for software. 

You can find OpenBuilds free CAM and Controller software here.

Product Details

  • 4 stepper connections
  • Full to 1/32 stepping
  • Options for input and feedback include E-Stop/Reset, Feed Hold, Cycle Start, Homing Location (X,Y,Z Limits), and Z-Probing.
  • Spindle Direction and PWM Control output
  • Current limiting adjustments for each axis
  • Heat sinks installed
  • Latest stable version of GRBL installed
  • Capable of powering from ATX PSU
  • Capable of powering from a dedicated 12V/24V two wire power supply
  • Drive 4 motors with DRV8825 Stepper Drivers - 2.5A (peak) with 1.75A (RMS)
  • One driver capable of cloning X,Y, or Z or being run as an independent axis
  • Size 110x70mm

New Features (V3)

  • Redesigned silkscreen (more pictures, less words)
  • New/Improved FTDI serial USB interface
  • Auxiliary PC fan header (12/24VDC depending on supply voltage)
  • 100% Input buffering to include limit switches (prevent false triggers)
  • Motor driver output LEDs
  • Step/Dir breakout pads to add external drivers
  • Beefed up overvoltage/reverse voltage protection
  • Z-probe pin now accessible from screw terminal
  • Default set to mixed decay (easily changed to slow or fast with jumpers)
  • E-stop now tied to hardware and software

Use the CNC xPRO Controller to Drive:

  • 4 Axis CNC Mill
  • 3 Axis CNC Mill With Multiple Drive Motors
  • Laser Cutter With XY, Auto Focus, and Rotary Attachment
  • Plasma Cutter 
  • Pick and Place for SMD components
  • Or wireless robotics (would love to see this used on a wireless quadruped)

Software Details

The CNC xPRO is designed to run the opensource gcode interpreter GRBL, opensource programming environment Arduino, or anything you can write in AVR studio.  The xPRO comes pre-flashed with GRBL so all you need to do is wire up your motors! 

From the computer side we have found that ChiliPeppr - Grbl Panel - Universal-G-Code-Sender and GRBL Controller 3.0 work extremely well (and are free downloads). 

The software stack used at Spark is:

NOTE: "Please do not use the mass settings updater within GRBL 3.6.1, setting are not properly mapped for GRBL 0.9g"

Basic Setup


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CNC xPRO V3 Stepper Controller with 4 on-board Drivers

CNC xPRO V3 Stepper Controller with 4 on-board Drivers

CNC xPRO V3 Stepper Controller with 4 on-board Drivers