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General Mach Discussion / Re: Using Enable1 throu Enable6
« on: August 27, 2009, 11:06:55 AM »
Using a brain to invert is a great idea. Not sure what the root cause of the problem is, but that sure would be a workaround. Thanks.
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Here's a more detailed description. I have a zero touch plate routine that many have been using. This code should never drive the bit into the workpiece. I am also using a SmoothStepper (SS) which may actually be the problem. However, I am aslo doing something that I am suspecting may be casuing an error and cofusing Mach or the SS. Rather than use a touchplate, I have simply shorted two wires togther to simulate the plate being touched while testing this feature. I have read that the G31 code will actualy retract the bit a very short distance after the probe fires. My hand shorting of two wires wouldn't simyulate the probel breaking contact at just the irght time for this small retraction so today I started wondering if I was causing a problem with my test method and then wondered if I could error trap. I am not at the machine today, so I can't simply try a real touchplate, although that scrares me a bit since this sometimes drives toward the table when the button routine performs the final retract. Another person also sent me a message that they were using the same routine I am using and it normally works OK. However, one time they had the touch plate so far away that the bit failed to contact the plate by the end of the G31 move. They hit zero again and after the bit hit the plate, the machine then drove the bit very hard into the touchplate/workpiece. They are not using a SS, so I thought that perhaps he too had an error condition that our button routine needs to trap.
Sorry for the lengthy explanation. Just thought it better to give the full picture.
I use G31s for touching off many, many times a day, with a SmoothStepper, running my own macros. Never had a problem, *except* one time on a previous version of Mach which *did* have a bug that resulted in breaking my probe. That bug was fixed within hours or my reporting it, and a new version of Mach posted. What version of Mach are you using, and what SS plug-in?
Regards,
Ray L.