Compact 2 to 5 axis, 5 digital inputs, 2 relay output, 2A bipolar stepper motor driver.

Compatible with mach3, uccnc, emc2, turbocnc, kellycam, foamworks, jedicut, gmfc, ...

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80,00 € tax incl.

Cobra - Bipolar 2A compact board for cnc

  • compact single-board
  • latest electronic chips with the highest electrical/thermal efficiency, so that no heatsink or fan is needed (lower power consumption, higher reliability)
  • 2 to 5 axes
  • 2 relay outputs
  • 5 digital inputs
  • single power supply
  • low cost
  • ready-made Mach3 and Emc2 config files
  • easy to use
  • additional axes can be added anytime by soldering more chips on board
  • 24VDC (nominal, 35V maximum rating)
  • bipolar drive
  • phase current adjustable from 0A a 2A by trimpot on board
  • chopping drive (higher motor speed)
  • microstep available, and adjustable from 1/1 to 1/16 (higher step resolution, smoothness, less likely to resonate)
  • quick snap-on snap-off screw terminals
  • enable input to disable output stage while keeping board on
  • pc connection cable 25 poles subd25 male/female (included in the scope of delivery)
  • high-quality Teko enclosures boxed version available (sold separately)
  • stepper motors available (sold separately)
  • dedicated power supply available (sold serpately)


Cobra board with nema23 stepper motors.


This milling machine operates with cobra board and 1,2Nm motors. A led inserting mask is being manifactured.

Read about cobra board creation on website page.




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