Go to Config > Motor Tuning . You must calibrate the Steps per Unit , Velocity , and Acceleration for the X, Y, and Z axes.
and configuring the communication between your computer and the machine's motion control card. 1. Hardware Connections USB Connection 3040 cnc usb setup
If you have a Mach3-compatible motion controller board, you will need the specific plugin file for that board (e.g., NCusbPod.dll ). Copy this to the C:\Mach3\PlugIns folder. Additionally, ensure your device is recognized: Device Manager should list "libusb (WinUSB) devices". Then, inside Mach3, configure the plugin under Config > Config Plugins , set the correct pins for your stepper drivers, and note that most Chinese boards use active low signals. Go to Config > Motor Tuning