Re: [mfg-smartcam] Off topic, peck drilling

[Dave Wolfgang]

Title: Off topic, peck drilling

G74 on the lathe is good for breaking the chip only. Not good for pulling chips out and getting coolant in the hole on very deep drilled holes. If used you must set parameter #722 return amount. I don't like G74 and changed all my lathes over to use codes G80-G89. G83 is most likely the cycle your looking for. But for most lathes this option is not turned on. Try programming a G83 cycle and see if it takes it, if so your in business.   Dave Wolfgang CNC Programmer/Supervisor www.hrindustries.net ----- Original Message ----- From: Stannard, Rick To: 'Smartcam Forum' Sent: Friday, December 12, 2003 1:29 PM Subject: [mfg-smartcam] Off topic, peck drilling Hi all,   I have a co-worker that is using a Fanuc 0T control for his lathe.  He wants to use the peck cycle( G74?)  but can't figure out how to make it pull out of the part after each peck.  It only does a chip break at the bottom.  If anybody knows if there is a solution, I would be most grateful.   Thanks Rick Stannard CNC Programmer 3000 W. Lomita Blvd. Torrance, CA. 90505 (310)784-4394 [EMAIL PROTECTED]