Turret Rotating to fast and missing steps

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4 years 3 weeks ago #253708 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
Am I correct a signal gets sent to the bob and when it supposed to change direction does It flick a relay. On the board .?

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4 years 3 weeks ago #253709 by Aciera
Replied by Aciera on topic Turret Rotating to fast and missing steps
A relay would be unusual for a direction signal. From the parallel port pin it would likely go through an optocoupler and that would change the signal going to the motor drive.

edit:
the easiest would be to use a voltmeter and check if the voltage changes when changing direction.

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4 years 3 weeks ago #253742 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
Hi
Where do I check and how I have a multimeter but not really a electrical person trying to learn.
Without you guys I wouldn't have got this far so thanks

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4 years 3 weeks ago #253745 by Aciera
Replied by Aciera on topic Turret Rotating to fast and missing steps
measure the voltage between GND and the Outputpin that carries the direction signal on the breakout board. alternatively you can switch the wires from the direction signal of the X and Z axis and see if the symptom moves to the other axis.

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4 years 3 weeks ago #253751 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
Would that be in the pinouts on stepconfig I can change?
Do I check pins like this. On board 
what do I set multimeter to?
Should I get a 12v plus then a 12 minus for reverse.? Asking in advance 
[img


 

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4 years 3 weeks ago #253752 by Aciera
Replied by Aciera on topic Turret Rotating to fast and missing steps
On the parallel port pins you should see voltages no higher than 5V so set the volmeter to the "20V" range.

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4 years 3 weeks ago #253754 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
Multimeter not working for me lolDo you mean if I change like thisIt tested x and the axis only moves one direction is that what you mean?
 

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4 years 3 weeks ago #253756 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
T

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4 years 3 weeks ago #253760 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
OK if I change pin3 and pin 7  x moves up only
and z does the same 

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4 years 3 weeks ago #253766 by Turners
Replied by Turners on topic Turret Rotating to fast and missing steps
If I change a axis pins to different pins say 8 and 9 if that stays the same ie a spins one way on both buttons does that tell me a boards gone ?

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