Need Help!- TW-10 Nakanura Fanuc 18

[jorgehrr]

Hello there -
Please I would like to understand the programming when you are transferring a part from the main to the sub spindle.
SYNCHRONIZATION
M91H-19.5 (This is the Phase angle...I got that)
G28H0 (?????)
G50C0 ( set C axes position to 0)
G0W-21.63
G1G98W-2.34F250.
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Operations in the pick of side don't match they are a few degrees off. I'm using the C axes to offset this, but I know is the transfer.
Please advice of any other way to program this to achieve a mirror image from the right side in the left spindle

Regards.
George

[g-codeguy]

H is incremental C-axis move...just like U is incremental X and W is incremental Z move. G28H0 does the same thing G28U0 or G28W0 does.

[jorgehrr]

I guess my question was:
Why is the programmer moving H-19.5 then do G28H0.
I know, I need to adjust/synchronize before I pick off. And thats what H-19.5 is doing...but G28C0 is sending C axis back home. ?????
Why move to -19.5 degrees then go back to 0 right after. I don't get it.
I think G28H0 should not be there for H-19.5 have any effect.
Thank you for ur replay.

[g-codeguy]

Originally Posted by jorgehrr I guess my question was: Why is the programmer moving H-19.5 then do G28H0. I know, I need to adjust/synchronize before I pick off. And thats what H-19.5 is doing...but G28C0 is sending C axis back home. ????? Why move to -19.5 degrees then go back to 0 right after. I don't get it. I think G28H0 should not be there for H-19.5 have any effect. Thank you for ur replay.

To the best of my knowledge you are absolutely right. I've never had to pick up on a surface that wasn't round so maybe this other guy knows something I don't.

Single block the code, and see what happens.

Not everyone may understand as well as you do how the codes actually work. I've seen some weird code that made no sense to me either.