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General Mach Discussion / Re: Progressive Move Error with X and Y
« on: July 06, 2008, 08:23:46 PM »
Brett,
Yes, I have 0.004 baklash on the x and 0.003 on the y. I've set it up to compensate and to not compensate and the results are the same.
My problem is that the error is cummulative. If I do single axis x moves or single axis y moves I can do them all day long and everthing remains in sync. If I do combined xy moves, I progessively get off by about 0.010 per cycle. In other words, if I do G1X2Y2 followed by X0Y0, I will not be back at X0Y0. I am about 0.010 off. If I do the same cycle again, it's about 0.020 and so on a and so forth.
What's more puzzling is that I can do complex arc moves combined with complex xy moves and it stays right on?!
At this point I don't know wether to suspect the computer, the electronics, or my software configuration. Just looking for ideas and do appreciate the suggestion.
Best Regards.
Carl
Yes, I have 0.004 baklash on the x and 0.003 on the y. I've set it up to compensate and to not compensate and the results are the same.
My problem is that the error is cummulative. If I do single axis x moves or single axis y moves I can do them all day long and everthing remains in sync. If I do combined xy moves, I progessively get off by about 0.010 per cycle. In other words, if I do G1X2Y2 followed by X0Y0, I will not be back at X0Y0. I am about 0.010 off. If I do the same cycle again, it's about 0.020 and so on a and so forth.
What's more puzzling is that I can do complex arc moves combined with complex xy moves and it stays right on?!
At this point I don't know wether to suspect the computer, the electronics, or my software configuration. Just looking for ideas and do appreciate the suggestion.
Best Regards.
Carl