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Mach3 USB Interface Board

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Mach3 USB Interface Board

Product Description

This USB Controller will run Mach3 through a standard USB port on a PC. Sold and shipped  from the United States. Warranty and support available.


1. Support for 4-axis, you can connect four stepper motor drivers or servo drivers;
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

Size: 8x7.7cm/3.15x3.03inch

Package includes:

1 x USB CNC Controller Card
1 x USB cable
1 x CD

Setup Instructions

1: Installing Mach3, then to purchase a Mach3 license.

2: Copy the USB Motion Driver RnRMotion.dll from the Disk, copy and paste the file into your Mach3 Plugins folder: "C:/Users/ProgramFiles/Mach3/Plugins"

3: Make sure that your board is connected to the PC with USB cable. It should automatically recognize the USB device.

4: Open Mach3, select the "RnRMotionController". This will allow your board to communicate with Mach3.


USB Interface Board MACH3 Plugin File (2281 downloads) (Download and copy the file to folder /Mach3/PlugIns)

USB Interface Board MACH3 Configuration File (2003 downloads) (Download and copy the file to folder /Mach3)

RnR Motion Board Wiring (1846 downloads)



Additional Details