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Can I change the retract between pecks of a G73 cycle?
I would like to know if there is a way to change the value of the rapid
clearance of .100 between pecks in the chip-break peck-drilling cycle (G73). We
are drilling through plastic, copper and stainless steel tubing. In order to
keep drills from breaking (we are drilling (380) #30 drill holes .625 deep.) We
can only drill at .7 Feed using a 'Q' peck of .03. Therefore with the .100
Rapid Clearance we are wasting a lot of time drilling air. Any help would be
greatly appreciated. Thank you, Herb Jeffery
Yes - if it's a Fanuc control. There is a parameter that controls the retract
in a G73 cycle. Unfortunately, the parameter number varies based upon Fanuc
model, so I can't tell you what the number is. If you look in your Fanuc
operators manual in the G73 description, you'll find the related parameter as
well as how it is set. It can be set to any value, but I'd recommend about 0.003
inch or so - just enough to let the chip break.