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you have g72 not g71
I don't think it will work a g71 toolpath should be a path thats asending or desending not moving downt then back up .
be carefull cut air first.
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I have a lathe with a Fanuc O-T, everytime I try to run this program it always stops at the second line of G71 and gives a error for an illegal command. I am fairly new at CNC I am sure that it is something simple that I am missing.
you have g72 not g71
I don't think it will work a g71 toolpath should be a path thats asending or desending not moving downt then back up .
be carefull cut air first.
I have tried changing it to g71 also and it still does it. this program is for cutting two .570 deep tapered grooves that is why I did it as g72.
The g72 cycle is stock removel in facing.
Is there any way to write this through the grooving cycle and using the chanfer option?
Dan I don't think there a caned cycle that will cut a pully grove I could be wrong g75 maybe . I think you might have to just write it longhand.
Here is a link to g71 programing by Peter Smid
http://books.google.com/books?id=JNn...age&q=&f=false
Replace R0500 by R0.05, as it is in inches.
G71 Type II can have non-monotonic increase/decrease in diameter as you move along the axis, but, while defining the profile, you cannot have two X-values at the same Z-value.
G72 also has similar restrictions.
So, plot the defined profile to check if it is permitted.
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