UG 6, when making impeller blades, why not the circle pattern array, the selected face pattern may be incomplete
If the selected face may not be complete in the face of the pattern, the array faces,
How many surfaces do you combine with a disk to form a whole surface? If the blade is a body, the disk is an entity, and the two are not combined, it is not possible to use a pattern plane. You can edit the moving object, rotate the leaf blades, and then try again.
If you can't attach the original entity, it will not merge. Check clearly, whether some are very small, very belittle the surface, did not pick.