Learn how to use the Axis Through Two Planes tool to create a construction axis coincident with the intersection of two faces or planes in Fusion.

On the toolbar, select Construct > Axis Through Two Planes
.
The Construction Geometry dialog displays, Type is set to Axis and Method is set to Through Two Planes.
Select an Extent Type option to establish the end point of the axis.
In the canvas, select the first face or plane.
Select the second face or plane.
Click OK.
The new construction axis displays in the canvas, along the extended intersection of the two faces or planes you selected.