3-Point-Align Script

 From:  Michael Gibson
8945.4 In reply to 8945.1 
Hi Ray, you can do a 3 point align with the Transform > Orient command, the first point is done by the origin placement and the 2nd and 3rd points are done by clicking and dragging on the x or y axis lines and releasing them on your target points.

If you can post the 3DM model file that you show in your screenshot I can make a demo for you of how that works.

- Michael