The problem with this IGES data is that the hole surface is a B-surface and the circles are intersection curves. This makes life difficult.
The recommended solution is to use Synchronous modeling (Optimize Face) and drag select around your part geometry to select all faces. The report (shortened) shows what is happening:
After this, you can use Hole Milling without any difficulties.
Tom van 't Erve
NX CAM Development
you are the best
Thanks to you I can work very comfortably.
I thought it was the only disadvantage in NX-CAM.
But, not now because your advise.
You are my benefactor ^^
Let me ask you one more.
Please recommend me drilling method. (this modeling)
1. hole-making >> spot drilling
2. drill - spot dirlling.
Do you want to recommend which one of the two.
I used the (drill - spot drilling) so far.
I mothod is..
Curve length - simplify curve - creats points....
but if the 100 holes?
Perhaps I would have a hundred time...
Please tell me know how.
Thank you very much.