#### To Change a Part's Position and Orientation

For example, to measure a dimension that references features on two sides of the part that are not accessible from a single part orientation:

1. Measure the alignment features on the first side of the part.

2. Create the original alignment.

3. Measure all required features that can be reached from the first orientation of the part.

4. Move the part to its new position.

5. Measure the new alignment features. The origin must be the same and the axis must be in the same direction as the axis of the alignment you are equating to. It is easiest to understand this if you imagine that the original origin and axes ' arrows were glued onto the part before moving it. The new alignment places the origin and axes' arrows in the same position with respect to the part.

6. Select the Insert | Alignment | Equate menu option. The Equate Alignment dialog box appears.

7. In the Equate new alignment list, select the new alignment.

8. In the With original alignment list, select the original alignment.

9. Click the OK button. The CAD model won't move relative to the alignment axes, but the measured values will move once PC-DMIS executes the equate alignment.

Note about Clearance Planes

After equating the new alignment, any existing clearance planes will continue to use the same "relative" plane from the previous alignment. This means after you've moved your part, you should define new clearance planes to avoid incorrect clearance plane moves.