Also, you can use the Triball to copy the part.
Then delete half the features on each part.
That works also, and it is easy to understand and are predictable.
Copy a even distance, then is is easy if you want the original position back.
Copy zero mm/ inch. Then it is a little bit more difficult to differ the parts from each other.
This post has been edited by Robert Andersson: Mar 5 2012, 03:13 PM