[Jedi]

I am having problems returning to the work coordinates on this lathe. Occasionally when I reset the program and restart it my x0.0 shifts. Ive been restarting it from G30 u0.0 and w0.0 in the program but when its being positioned before the g71 roughing cycle the x direction, my values have changed. and it shows that it will crash Any help would be great. Thanks

[tobyaxis]

You might want to restart your program from the Home Position G28U0W0. I don't use G30. I set my tools by measuring the longest tool and write a G28U0W(?) to index the Turret during the Part Program. Then send the Machine Home at the Begining and End of every Program.

Hope this helps

[jackson]

Toby why the G28 on a lathe ? i use it on the mills but never on the lathe.

[tobyaxis]

Toby why the G28 on a lathe ? i use it on the mills but never on the lathe.

G91G28X0Y0Z0 is Home for Mills

G28U0W0 is Home for Lathes

Some prefer to use G30P1 to send the Turret to a safe position to Index to a New Tool. G30 is a Soft Home Position that has set Parameters, I think.

This is what is listed in My Fanuc Lathe Master Manual

G27- Reference Point Return Check
G28- Return to Reference Point
G29- Return from Reference Point
G30- Return to 2nd Reference Point
------------------------------------
G30 is used in Mills that have a different Tool change position other than the Z Home Position. (Mazak Mills for example)

[jackson]

G91G28X0Y0Z0 is Home for Mills

G28U0W0 is Home for Lathes

Some prefer to use G30P1 to send the Turret to a safe position to Index to a New Tool. G30 is a Soft Home Position that has set Parameters, I think.

This is what is listed in My Fanuc Lathe Master Manual

G27- Reference Point Return Check
G28- Return to Reference Point
G29- Return from Reference Point
G30- Return to 2nd Reference Point
------------------------------------
G30 is used in Mills that have a different Tool change position other than the Z Home Position. (Mazak Mills for example)

I dont use anything at the end of the program or atfer a tool i just move like an 1" out from the longest toolo in Z
N1000
(CNMG 431)
G0G54T202
G50S3000
G96S1000M3
G0X.8Z0M8
G1X-.03F.01
G0X.76Z.1
G71U.08
G71P2Q3U.02W.002F.011
N2G0X-.008
G1Z.001F.015
S2000
G3X.1306Z-.0287R.098F.004
G1X.7388Z-.3328
G3X.747Z-.3427R.014
G1Z-.61
N3G0X.76
G0Z2.M9
M1

[dcoupar]

Jedi,

Why not post your program so we can see it? Then, maybe someone can figure out why it's doing what it's doing.

Dave

[tobyaxis]

Jedi,

Why not post your program so we can see it? Then, maybe someone can figure out why it's doing what it's doing.

Dave

What he said. :withstupi

[Jedi]

It was a silly mistake because i adjusted my parameters so my g30 z0.0 was where my zero was in the program but i adjusted my workshift a couple of thou and when it would return to g30 it would show that i was a couple of thou out so I figured it out the next morning when i had a fresh start.

[tobyaxis]

It was a silly mistake because i adjusted my parameters so my g30 z0.0 was where my zero was in the program but i adjusted my workshift a couple of thou and when it would return to g30 it would show that i was a couple of thou out so I figured it out the next morning when i had a fresh start.

Glad you resolved the problem.

Cheers!!!!!!!:cheers:

[F.Sharifi]

I am having problems returning to the work coordinates on this lathe. Occasionally when I reset the program and restart it my x0.0 shifts. Ive been restarting it from G30 u0.0 and w0.0 in the program but when its being positioned before the g71 roughing cycle the x direction, my values have changed. and it shows that it will crash Any help would be great. Thanks

Dear JEDI i have Dainichi CNC Lathe with Fanuc OT type F16 , if your machine is the same would you please send me your machine parametre ?

thanks in advance

F.Sharifi

[Jedi]

its a fanuc 0T 15f and i do have the parameters at homes sinse i erased them once by accident let me know if tey will do.

[Jedi]

I had to manually input some of the paameters' i think it was the 9000`s. This was to set the parameters for sending and recieving so i could send the rest of them via rs232.

Ps these were for a 0T 15f

[Jedi]

sorry those are the parameters for a Dianichi F20 with a 0T controller

[tieman55]

If you have a 12 tool turret ,? Would happen to know what the Diagnostic setting is for a 12 tool turret ........ versus a 8 tool, My F20 thinks it is a 8 tool and it is a 12 tool..

Thanks Mike