I am having alot of trouble getting these RAMPS to work. I have bought 4 so far and 4 out of 4 have been broken on arrival. What keeps happening is that I can get one or two motors to work but the third motor will not work. One board I couldn't get the extruder heater to work.
I am using marlin firmware and RAMPS 1.4. I attached my marlin configuration file. Here is the testing I have done so far. Take for example the most recent arduino board and ramps shield I bought.
I tested the pins on the arduino and they all seem to work with an LED. Here are all the pins I am checking for on the arduino. All step pins are dim when I send move command which is because it is pulsing. All dir pins are low movingin positive direction and high in negative direction. All the enables are always low, but I think that is correct for Marlin firmware right?
When I send gcode the y motor is working, the z motor is not moving but has holding torque, and the x and e0 motors are not moving and have no holding torque; the heater and thermistors are working fine.
I tried swapping the drivers between y and z but this did not change anything so I believe the stepper drivers are ok. I adjusted all the trimpots to vref = 0.4V. On my meter I am reading 12V to each stepper driver.
I tested all the motors by connecting each cable to the y output on ramps. All the motors work when in the y position.
I am using marlin firmware and RAMPS 1.4. I attached my marlin configuration file. Here is the testing I have done so far. Take for example the most recent arduino board and ramps shield I bought.
I tested the pins on the arduino and they all seem to work with an LED. Here are all the pins I am checking for on the arduino. All step pins are dim when I send move command which is because it is pulsing. All dir pins are low movingin positive direction and high in negative direction. All the enables are always low, but I think that is correct for Marlin firmware right?
When I send gcode the y motor is working, the z motor is not moving but has holding torque, and the x and e0 motors are not moving and have no holding torque; the heater and thermistors are working fine.
I tried swapping the drivers between y and z but this did not change anything so I believe the stepper drivers are ok. I adjusted all the trimpots to vref = 0.4V. On my meter I am reading 12V to each stepper driver.
I tested all the motors by connecting each cable to the y output on ramps. All the motors work when in the y position.