Hi All,
I have a couple of lathes with fanuc controls. One is a 10TF the other is a 16TT
I'm machining rollers with basically a V groove in the OD and a rad in the bottom of the groove. (prog below)
Both machines run the type 2 canned cycle. The parts machine fine on the 10TF
however on the 16T during the roughing cycle tool nose radius compensation does not
work and consequently overcuts going down the groove flank . When it runs the G70 finishing cycle all is fine. This seems strange as the 16TT is a newer control.
Another issue is the 10T, after the roughing passes takes another pass over the entire profile (Plus finishing allowance), sort of finish rough pass.
whereas the 16 T does not.
Anyone know anything about this behaviour?
This is the first time I've ever used these type II cycles. If I can get it working on both it will be extremely useful
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O0001
(PART ID = )
(B CHECK VALUE = 44.00)

G21
G50 S600
G00 T0303
M41
G96 S130 M3
G99
G00 G42 X100.000 Z2.0 (CANNED CYCLE START POINT)
G71 P10 Q20 U.5 W0.0 D1200 F0.08
N10 G00 X88.000 W0.0
G01 Z1.0 F.08
X96.000 Z-3.0
Z-24.000
X60.485 Z-41.757
G02 X56.970 Z-46.000 R6.000
G02 X60.485 Z-50.243 R6.000
G01 X96.000 Z-68.000
N20 X100.0
G00 G40 X300.0 Z300.0
M01

(FINISHING CYCLE)
N2 G50 S600
G00 T0303
M41
G96 S130 M3
G99
G00 G42 X100.000 Z2.0 (CANNED CYCLE START POINT)
G70 P10 Q20
G40 G00 X300.0 Z300.0
M30
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