Features 

1. it can drive three axis,The 4th axis expansion, to facilitate your needs 4-axis machining when working
2. Spindle relay output, easy to use software such as mach3 to control spindle start and stop.
3. Semi-flow control functions, and effective to stop the motor when the current is reduced to a minimum.
4. Interface with a fan, you can add fan under your choice.
5. With 3 wire 0.4-4.5A (peak) rated output of two-phase adjustable-current bipolar stepper motor drive;

6. Standard parallel port interface, support for MACH2, KCAM4 series software;
7. With optical isolation and DCDC power supply isolation, the full protection of your computer parallel port and equipment;

8. with limit switch,can connection 4 aixs limit switch
9. Support four microstepping ——1,1/2,1/8,1/16;
10. 18 — 40V single switching power supply,microchips to use as a 5V power supply, stable and heat small
11. Using RC +7414 automatic semi-flow,the current automatic reduce when stepper motor stop to down the heat.

Current Settings

Micro steps settings