Use the manual on-screen arrows to jog the X, Y, and Z axes. If an axis moves in the opposite direction of your command, reverse it in your software settings (in Mach3, check the "Dir LowActive" box for that axis; in GRBL, invert the mask using the $3 setting).
Go to or Motor Outputs .Because the USB board manages its own physical pins, you generally do not change individual pin numbers in Mach3 unless specifying homing/limit switches. Ensure Enabled is checked with a green tick for the X, Y, and Z axes. 2. Motor Tuning (Steps per Unit)
Note: If any axis moves backward, invert the direction setting in your software motor tuning configuration or invert the direction mask bit ( $3 ) in GRBL. Running an "Air Cut"
The 3040 CNC router is a staple for hobbyists, makers, and small workshops. Its 300mm x 400mm work area provides the perfect footprint for milling PCBs, engraving wood, and cutting soft metals like aluminum. 3040 cnc usb setup
To help tailor any further troubleshooting, what (Mach3, Candle, or DrufelCNC) are you planning to use, and does your 3040 control box have a specific model name or color ? Share public link
This is almost always due to one of two things. Either you need to perform the calibration of the steps per millimeter (see Section 4), or there is mechanical backlash in the system. Check the tightness of your belts, if applicable, or the leadscrew nuts.
Steps per mm=200×85=16005=320Steps per mm equals the fraction with numerator 200 cross 8 and denominator 5 end-fraction equals 1600 over 5 end-fraction equals 320 Entering Calibration Values Use the manual on-screen arrows to jog the X, Y, and Z axes
: Users on Windows 8/10 must often restart their computer in "Advanced Startup" mode to disable driver signature enforcement before the USB driver can install correctly. Essential Hardware Setup Tips
) at the starting point of your material before hitting "Cycle Start."
Download a GRBL controller software like , Universal Gcode Sender (UGS) , or OpenBuilds CONTROL . Ensure Enabled is checked with a green tick
Jogging positive (+) must move the gantry away from you.
Recalculate your ball screw pitch vs micro-stepping ratio. Update steps/mm. E-stop circuit open or incorrectly inverted.