[Vulgamore]

Hey guys, im working on an Okuma LB3000MYW trying to use the main spindle as a tailstock. yes i know sounds odd. I'm working on a long part. doing the first half of it in the main and doing a pull with the sub, some more machining. then transferring to the subspindle. Once its transferred i then put a center in the main spindle. synch the spindles with M210 M883 M151 then use torque skip command to bring the sub up to the main with the center. Everything up to this point works just fine. Once i move onto the next part of machining which would be using the sub to drive everything and turning towards the sub. i get spindle synchronization interlock alarm 10. which states that the B spindle is not selected. Program where the issue happens below.

G141
G270 SP=2
G00 X50.
Z10.

NAT54(VNMG 332)
(ROUGH OD)
G50 S2500
G97 S993 M03 M42 (HERE IS WHERE THE ALARM IS THROWN)
G00 T540254
G96 S650
G00 Z.1 X2.5 M08
G85 N414 U.02 W.01 D.1 F.014
G81
G00 G42 X1.1586
G01 Z.0707
X1.33 Z-.015
Z-3.42
X1.28 Z-3.445
Z-4.2773
X1.4255 Z-4.35
Z-12.64
X2.2155
X2.2455 Z-12.655
X2.5
G40
G80
G00 Z.1
M09
G97 S993
M05
G00 X50. Z50. T2200
M01

Anyone have any ideas? thanks in advance

[deadlykitten]

hello far as i know, 210 883 151 is only available for main spindle

thus you loose it, once you switch to 2nd spindle; trials may be needed to confirm, or find a work arround, and now i am not near a dual spindle lathe

a quick fix, is to machine 2nd part in G140; should work, as machine does not know which chuck is holding the part, and which is holding the center, but only to have them both clamped, for this instance / kindly