To lock to the Z axis when measuring
- Click Review tab Measure panel Measure drop-down.
- Click a Measure tool.
- Press Z, or on the Measure panel, click Lock drop-down Z 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 blue to indicate it is locked to the Z 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
Z when using a Measure tool.