[Heavy_Metal]

Hi guys,

Are there forum users with a Doosan Z290SMY / Fanuc 18i-TB.

I want "TWO TURRET PROCESSING" on one (main) spindle.
I can use the upper turret on the main-spindle and the lower turret on the right/sub-spindle.
Everything works great, part transfer, cutoff, synchronous modes etc.
I want to turn "long" shafts in the main spindle and use a "BRUCKNER-spring loaded" live-center in the lower turret,
so both turrets related to the main-spindle ( no balancer processing ), the sub-spindle must stay open for product transfer.
I made a nc-program, two turrets on main-spindle, but that runs only when the sub-spindle is closed.
I can't find any program examples for the right nc-code for two turrets on the same spindle, left or right.

The blue Doosan Mecatec book isn't very helpfull for the right M-codes, maybe M62-M63 ??
The program "TWO TURRET PROCESSING" according the Doosan book ( page 6-1 ) doesn't work.
This is the program in the book;

6. Program Exercises
(1) TWO TURRET PROCESSING / Z290
(M300 - are waiting codes)

< UPPER TURRET >
%
00001:
N01 G99 G28 U0. W0.
N02 G00 T0101
N03 X65. Z0.
N04 M301
N05 G97 S1200 M03(CUTTING SPEED 150, Ø 40 )
N06 G01 X40. F0.25
N07 G00 G42 X54. Z2.
N08 M302
N09 G01 X60. Z-1.
N10 Z-49.
N11 G02 X62. Z-50. R1.
N12 G01 X68.
N13 X70. Z-51.
N14 Z-65.
N15 X78.
N16 X84. Z-68.
N17 G00 G40 U2.
N18 M303
N19 G28 U0. W0. M05
N20 M30
%

< LOWER TURRET >
%
00001;
N01 G99 G28 U0. W0.
N02 G00 T0101
N03 G42 X50. Z2.
N04 M301
N05 M302
N06 G01 X44. Z-1. F0.25
N07 Z-30.
N08 X42.
N09 X40. Z-31.
N10 Z-92.
N11 G40 U-2.
N12 G00 Z5.
N13 M303
N14 G28 U0. W0.
N15 M30
%

Someone with a solution ????

Regards,
Heavy_Metal

Attachment 225958

[yardbird1969]

Hi Heavy_Metal,

Sorry I have no solution for your issue. Doosan claims to have life time training and support.
Try calling them maybe they can help. That looks like a nice center you have there.
DouglasR might be able to help but I haven’t noticed him here in a while.
-Brent-

[Heavy_Metal]

Hi Brent,

The BRUCKNER center is a solution when there is no "Torque Control Function" for the B-axis (or turret) on your lathe.
It's over €600,- ($825) in Europe, so not low priced but its a nice tool.
They are available with conus, cylindrical shank, Capto or VDI.
My Doosan is a Mecatec, not a Infracore, so I don't know about the live time support.

Regards,
Heavy_Metal.