Here are two surfaces that I want to have a 3D curve sketch where the two intersect.
In this example there are two surfaces bodies used but you can do this with any two faces (even solid bodies) that intersect.
Have your two faces that intersect ready.
Now select the Intersection Curve as shown
Here pick the two faces and then hit the green check. SW stays in this command until you either hit the check twice or hit Esc. Key.
Now you have your 3D sketch curve, notice you are now in a 3D sketch mode.
Here is the intersection curve by itself as I hid the two surface bodies.
On a solid model
start a 3d sketch
Convert entities and select intersection curve
This also works with projected curves to get sketch enties
No, that is not what I wanted. An intersected curve is a curve that has been made when, for example, you have to surfaces that are intersecting. After that you use a command intersection curve which can be find in tools - sketch tools.
Than you select both surfaces and sketch appears on the intersecting place of those surfaces. You can also create this with planes and solid bodies.