Hi,
Look at the screencast.
I'm making a pipe between two plates. First I make a plane with a offset from the origin and extrude the pipe to this plane. Notice that the plane is not adaptive. Now when I change the position of Plate-02 the pipe does not adjust it's length to this position.
Next I make the same plane but offset it from Plate-02. Inventor makes the plane automatically adaptive which means it listens to Plate-02 although the plane is created in Plate-01. After extruding the pipe to this adaptive plane Inventor will make the part also adaptive. When I change the position of Plate-02 the adaptive plane will inherit the new position and therefore the pipe will adjust it's length.
Hope it's clear, good luck!
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