Fanuc G71 roughing cycle

[alloy]

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

 

[mmcmdl]

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 .

 

[alloy]

Thanks.

No hurry, enjoy your trip.