I need help
I have made myself a CNC witch looks like a overgrown
RepRap pro with a working bed 50 x 50 cm.
With that config you have 2 Z
stepper motors.
I have the Arduino mega with ramps 1.4
The firmware I used was “Marlin-MPCNC_Ramps_T8_16T_LCD_32step” and adjusted the line “#define Z_DUAL_STEPPER_DRIVERS”
With the LCD controller and the Repetire-host software both motors work fine but a g code file or typing G00 Z20 1 motor buzzes and the other dose nothing. I have never had success putting 2 motors on 1 driver.
BTW I have the same setup on my reprap pro with the firmware marlin 1.1 and I used that to make this CNC.