Brand: SainSmart

[discontinued] CNC 4-Axis Kit 6 with ST-4045 Motor Driver, USB Controller Card, Nema23 Stepper Motor and 24V Power Supply

SKU: 101-60-505
€269,99 €299,99 Save €30,00 FREE EXPRESS SHIPPING
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  • Comes with CNC USB port interface breakout board
  • 4.5A ST-4045 stepper motor driver, ensure the stable operation of equipment
  • 350W 36V switching power supply; the range of AC input voltage is changed by the switch
  • 57HS76 stepper motor, powerful and stable to work.
  • Easy to assemle, simply to DIY.


This is SainSmart new CNC complete kit for engraving DIY. It comes with necessary and basic parts to make your own engraving machine. It is simple and easy to assemble the parts.



  •  mach3 4 Axis USB CNC Controller card 100KHz 
  1.  Support for 4-axis linkage, you can connect four stepper motor drives or servo drives;
  2.  Maximum step-pulse frequency is 100KHz,which is suitable for the servo or stepping motor;
  3.  Support automatic probe tool
  4.  Support Emergency input
  5.  Support for limit switch
  6.  Support for connecting electronic handwheel
  7.  Need use external 24V DC power supply to isolate USB and external port, and to make the system more stable.
  8.  Have 0-10V output port, you can use mach3 software to control the spindle motor speed.
  9.  4 general-purpose inputs, you can connect the limit switch, estop switch, probe switch, back to zero and other device
  10.  4 general-purpose isolated relay drive output interface, can drive four relays for controlling the spindle starts, forward rotating and reverse rotating, pumps and other device;
  11.  1 status LED, indicate connection status on the board.


  • ST-4045-A1 Stepper Motor Driver


  1. DC power input type:12V~48V(Typical 36V);
  2. Output current:0.6~4.5A;
  3. Mircostep: 1,2,4,8,16;
  4. Protect form : Overheated protection,over-current protection,under voltage protection;
  5. The maximum pulse rate is 200KHZ;
  6. Dimensions:118mm*87mm*35mm;
  7. Net Weight:253g;                                      
  8. Working environment:Temperature-15~50 degree, Humidity<90%.


I/O Ports:

  • 1:DC+: DC power positive pole
  • Note: Must guard against exceeding 45V, so as not to damage the module.
  • 2:DC-: DC power cathode
  • 3:A+ A-: Stepping motor one winding
  • 4:B+ B-: Stepping motor other winding
  • 5:PUL+ PUL -: Stepping pulse input+5V (Rising edge effective , rising edge duration >10μS)
  • 6:DIR + DIR-: Stepping motor direction input, voltage level touched off, high level foreward , low level reverse
  • 7:ENA+ ENA-:  motor free   


  • stepper motor



Number of phases


Number of lines


Phase voltage


Phase current







1.89N.M(270 Oz-in)

Shaft Diameter


Axial length


Side length







  • Switching power supply


  1. the range of AC input voltage is changed by the switch
  2. high-efficiency, high reliability
  3. 100% full load burn-in test
  4. Protections: Short circuit / overload / over voltage / over temperature
  5. built-in cooling DC fan control
  6. Working frequency is 25 kHz
  7. Input Voltage:220V/115V
  8. Output Voltage:36V
  9. Output Current:9.7A
  10. Output Power:350W



Package List:

  • 1 x 36V/9.7A switching power supply
  • 4 x 1 Axis ST-4045-A1 stepper motor driver
  • 4 x 57HS76  3A 270 oz/in  stepper motor
  • 1 x mach3 4 Axis USB CNC Controller card 100KHz
  • 1 x USB cable
  • 1 x CD