I wanted to make an object with a repeating relief pattern. what I did was model up a shape to take away from the material. I did an array of 12 in the x direction. I made a box and then tried the solid-difference from the pulldown. I received an error, so I did it again but selected them 1 at a time. It worked for the first 3 and the last 7, but still gave me an error on the 4th and 5th. I was able to work around this by copying on of the other positions to these positions and it worked. I was wondering why this happened and if I was doing something abnormal, even though it worked on some of them? I am using rhino 4 commercial.
Thank you
Mike