Use the Create Mesh Section Sketch command to create a sketch that contains a section line where a plane intersects a mesh body, in order to reverse-engineer a mesh in Fusion.
In the Design workspace, on the Mesh tab, select Create > Create Mesh Section Sketch .
The Create Mesh Section Sketch dialog displays.
In the canvas, select a mesh body to create the section sketch from.
Select a Section Plane to create the section sketch on.
If the section plane intersects the body, an orange section line displays at the intersection.
Adjust the position of the section plane:
Click OK.
The mesh section line displays on the mesh body in the canvas. The new mesh section sketch displays in the Sketches folder in Browser, and it contains a Mesh Section. A new Sketch feature displays in the Timeline.