Fanuc G71 roughing cycle

alloy

Dan, Retired old fart
H-M Supporter Gold Member
Joined
Jul 5, 2014
Messages
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Trying to figure out the G71 roughing cycle.

I've read many examples online and tried many different things, but the control hangs up on the second G71 line.

Anyone see my error in this code?

N24 G0Z.1
N25 X3.
G71U500R500
G71P28Q31U200W200F.005
N28 X3.
N29 G1Z-.84
N30 X1.125
N31 X3.
N32 M9
 
I've got a book down the basement that I'll send you . I always used G71 on the Makinos . I'm leaving for a 10 hr ride in a few minutes .
 
Thanks.

No hurry, enjoy your trip.
 
If I’m correct I’ll have to look when I get into work tomorrow but g71 I think is modal. You shouldn’t have to call it out a second time. Like I said I’ll double check tomorrow.
 
Okay so we actually just ran into this at work right after I was on this g71/g72 is a canned cycle on fancy controls it looks like your missing some information like your Dxxx which is your depth of cut.
 
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