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bodaciousbrian
With the move stepper option under Prepare in the lcd.. I say rapidly but it is quite slow. just +10 cm back to 0 repeat, it wont ever move more than 15 cm total before it fails. 30 seconds total.
The main symptom I see other than shutdown is chatter in the servo. All axis cause interference on that servo, but none are anywhere close to as bad as the Z, I suspect its because it has 2 steppers and draws more currant.
First, are you using servo motors or steppers? How are you driving them? How do other axes cause chatter in which stepper/servo?
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bodaciousbrian
The restarts still occur when the servo is unplugged all together.
Are you saying when the Z axis motors are disconnected and you tell the thing to jog the Z axis the board still resets?
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bodaciousbrian
This whole thing was noticed because i had just replaced that servo, due to wires being constantly stretched, it would fire randomly when my x axis would move to far to one side. I have tried 2 other servos, and the original one again and all work the same way, with lots of jittering.
It sounds like the motor wire broke while the machine was operating. That is the same as disconnecting the motor while the machine is operating which will usually destroy the stepper driver module. Try replacing the module(s).
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bodaciousbrian
My servo wires are totally separated from all other wires servo has been powered by:
Powering directly from the powers supply and only connecting the stepper data line to the ramps, on the d11 pin,
data to d11 and power from adjacent 5v and ground wires using the 5v jumper located toward the power supply from d11,
data to d11 and power from Other servo controller such as 5v/ground next to pin d4
All ways of powering the servo suffer the same massive jitters.
Draw a diagram that shows the wiring between the controller board, power supplies, and motors, take a picture of it and post it here.