To lock to the X axis when measuring
- Click Review tab Measure panel Measure drop-down.
- Click a Measure tool.
- Press X, or on the Measure panel, click Lock drop-down X axis.
- Move your cursor over the model in the Scene View and use the surface snap to select a surface.
- Click the start point of the distance to be measured in the Scene View.
The measure line turns red to indicate it is locked to the X axis.
- Click the end point of the distance to be measured in the Scene View.
The optional dimension label displays the measured distance.
Command entry: Press
X when using a Measure tool.