Hello, i am making a 3d printer and i have a big problem. When i try to move x or y axis from Pronterface motors just buzz and doesnt move(nema 17 with 4988 and ramps 1.4) Z axis works fine. I check with led the wiring and its ok. I switched the motors with z axis and they work, i swichted drivers too and they work. Extruder motor works too. Vref is 0.6v on all drivers.
With this setting #define DEFAULT_AXIS_STEPS_PER_UNIT { 320, 320, 1600, 388.3496 } it only buzzez.
With default #define DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 400, 500 } it move a bit but not as it should.

Install 3 micro stepping jumpers under each stepper driver!

I will test, i have 2 jumpers on all drivers, why would z axis and extruder work and x and y not?

You install the number you want for the micro stepping you want, but 99.9% of people forget to install any

These are the Jumpers for a A4988 (Jumper off = LOW)


But your steps/mm is rather high for a old 8 bit controller.


3 factors are involved in moving.

Steps/mm (and microstepping)
Feedrate
Stepper driver current. (adjusted via the variable resistors on the A4988's, set to match your stepper motor current))

Edited 2 time(s). Last edit at 09/20/2024 07:26AM by Dust.

Yeah, adding the 3rd jumper worked, thank you so much. Now i need to figure out how to set the steps