I may have miss-stated the question. Aperently the drilling ops are functioning fine. The dilemma is with the milling, such as face milling. WCS was rotated around to put the milled feature on the pos side of the axis, but it still cuts on the negative side. E

For some reason I was thinking that the WCS had to stay in a right hand system. Thanks, E

If you chnage your WCS so that X pos is in the oppisite direction, your Z ends up flipping also, and my tools come in from the wrong side. Then I have to go in and try to fix the tools. Did I miss something or is this basicly the steps you go through? E

If a circle plate with a hole at 6 O'clock (-X) is posted; When I run it, the drill is below the X axis. To get the c-axis to reorient 180, should I: 1 - Rotate the part in master cam and regenerate the tool path? 2 - Rotate the construction plane with X pos in the opposite direction? or 3 - Change the WCS around to the desired orientation? Thanks, E

Thanks Phil / Chris. The NCI change solved the problem. E

I'm working with the stl now. Its closer. I'll keep working on it and let you know. E

I've noticed that if I post more that one operation with out all of them together; I get seperate NC files. Not necessarily one for each either. Is this a glitch or...? E

Thanks Chris, that worked. I deleted the flip and everything after instead of just the flip. Then recreated the flip. It worked the first time. Thanks, E

Thanks Peter, I gave it a quick try and that seems to be what I need to do. I'll work with it a little more. E

The other day I programmed a part with a flip in it and it worked fine. Now I'm using the program as a short cut to program another part and I cann't seem to get the flip to work. Initially the active spindle and geometry sections were both inactive. By deleting the tool path and recreating it I was able to select the new geometry. But I keep getting "Stock not defined in either spindle". I've checked the job setup and everything looks fine. I got the same message when I tried to flip a sample part. My only success was when I start up a file from scratch. Any thoughts? Thanks, E

That's what it looks like. The back side reverts to the basic stock dimentions. And this is V9.1 ...

Thanks Chris, Thats an improvement. But if I needed to retain the features on the first side... Is that possible? E

When using "Stock flip", I can backplot and see the part change possition. But when I verify, the flip is not preformed. Did I overlook something? Thanks, E