hi,
I'm building a 3D printer , for that I'm using for the electronics part Arduino Mega with ramps v1.4 and a4988 , and two motors-M49SP-2K for X and Y axes and QH4-4325 MOTOR FOR Z axe , I've tried to use the GRBL with ugs software but nothig happned , the grbl worked well but the motors didn't move so I had thought of changing the software and i used "GRBL controlled" than "Candle" next "Pronterface" in place of "UGS" but nothing changed so I had found an other method wich is changing the GRBL by MARLIN with using "Pronterface" but I still have the same problem wich is the motors don't at all move , so pleeeeaaaase help me!!!
Test the motors (one at a time) with this Simple Stepper Code. You will need to make sure it refers to the correct pins for step and direction for each motor.
I think with the RAMPS shield you will also need to set the enable pin - I can never remember whether it should be high or low.
It will be much easier to help with a problem with a short and simple program.
...R
I think that I found the problem where it is.
If you see to the to version of A4988 the mine and the other one where from I got the circuit
There is à deference between the pins of GND