Hi,
I’m also having similar issues on the y axis stepper driver. I have an Arduino Uno also plugged in with grbl 0.8 successfully running on it. Both my x and z axis stepper drivers work perfectly, but the y doesn’t light up or move the stepper when I send commands to it. The other 2 axis’ lights do however.
The y axis light does light up when you manually physically move the y axis gantry position, I’m not sure if this means it is okay or not?
I have eliminated the possibility that it is the Nema17 stepper motor at fault, by swapping over the y axis motor to the other axis.
I have also reflashed grbl several times to determine this isn’t the issue. I’ve used a little jeweller’s screw driver that isn’t capable of forcing much torque to change the position of the y axis’ variable resistor or capacitor, this is still within 270 degrees.
Please help, I’m out of troubleshooting ideas?
Thanks,
David
