Note: If both sides of the gap are not coplanar, this will impact the accuracy of the calculated gap. The Gap size is calculated, including the Max and Min Gap size from the readings captured. and an existing polyline from the Feature 2 drop down.Select an existing plane from the Feature 1 drop down.
Then using the Construct > Dimension > Gap from Features option: Where a gap or channel is located within a planar surface, users can measure the plane, and using a probe larger than the gap, scan along the gap using the polyline feature (user can determine the interval type / size). This option allows users to quickly establish the gap between parallel edges or faces, using a single of multiple readings. 3D Hand Held Scanner - Freestyle3D Objects