I wanna modify a CAD drawing designed by an ex-colleague. But he used a polygon mesh which I couldn't modified except moving the vertexs.

Any ideas how to handle it?

Thanks in advance.

I do not believe you can without exploding it.

ssc

thanks for your advise. One more question, how to explode it?

use the explode command (if it is a 3d ACIS solid this is another matter).

ssc