The whole "how much torque?" thing is a matter of long debate. More or less - how much do you derate the design and in which directions?
You are not going to hurt the drivers or the motors by running the setup at 1A. That would at least rule out torque as the issue. You can then move on to checking other issues. I've assumed that the motions are all in the correct direction / correct distance. The next things on the list mostly relate to mechanical binding.
You are not going to hurt the drivers or the motors by running the setup at 1A. That would at least rule out torque as the issue. You can then move on to checking other issues. I've assumed that the motions are all in the correct direction / correct distance. The next things on the list mostly relate to mechanical binding.
