[fooo]

Hmm I don't know! What would be the G-code for this?

[arie2003]

what did you do on step 3?
secondary/sub spindle have different M code with main spindle.
did you try to put M300 (secondary spindle selection) on the top of second spindle program?
another M code for secondary spindle :
M303 normal rotation
M304 reverse rotation
etc
please refer to M code list on operating manual book

[fooo]

Well I can make the sub spindle turn and I think I put M300 at the beginning of the program but lets say if I put in G00 Z0 it moves toward the main spindle and not toward the sub spindle so it looks like to me that there is an issue with the zero point.

In the Setup-Page there's a Z-Offset data item for each transfer that tells the control to shift the zero point so machining can be done on the subspindle after the transfer is completed. It looks like to me this offset is not considerated when I call the ISO sub program.

[chucker]

Just wondering can you use your g54 through g59 work offsets to set a new zero point at the face of your part in the sub spindle then program Z in the + direction.