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Author Topic: trouble with steps or with stream pulses  (Read 6057 times)

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Offline nemoc

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Re: trouble with steps or with stream pulses
« Reply #10 on: August 31, 2007, 08:28:20 PM »
Thanks Jim.
I think so. I did the same maths. I agree that is the first two pulses. I think that this occur in one direction but not in the other.
I will do your suggestion.

Nemo
« Last Edit: August 31, 2007, 08:37:15 PM by nemoc »

Offline nemoc

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Re: trouble with steps or with stream pulses
« Reply #11 on: September 13, 2007, 08:18:58 PM »
Finally I fix the problem. I think.
After many electronics test I found the problem, which was the Optocoupler IC from step motors drivers.
After I changed all optocouplers from drivers the problem disappeared.
Great! Now my CNC is running fine and accurate.
I think that one signal probable "DIR" was retarded by the old optocoupler then the step motor driver loses "step pulses".
I don't have a scope and I think that with one , this kind of problem would be more easily set on.
Thanks Jim
Thanks All.

Nemoc