projecting into an early sketch

[maker9876]

In a multi-component design, 

suppose, in one of the components, you want to go back to an early sketch

and project in geometry from another component,

that was created later in time....

(and yet of course when you open the sketch none of those later bodies are visible)

is there any way to do it?

In a complex design it's impossible to plan everything so situations like this don't occur, so it would be nice to be able to do it!

[kennyj]

I'm not sure about Fusion,  but in Inventor we do this with skeletal modeling - the same sketch is derived into each component.  Then if anything in the design changes, you just change the single sketch.  You can add details and additional sketches as needed to the same base sketch part file.

[jeff_strater · Accepted solution]

@maker9876,

No, unfortunately, this is not possible.  Think of the timeline as a representation of the history of the design.  You can never refer to something that was created later in time, in a sketch or feature that is earlier in time.  Doing that would create a cyclical dependency that Fusion could not handle, so it is blocked.  When you edit an early sketch, all components/features/sketches/etc. created later are removed from the UI.

Jeff

[maker9876]

Thanks. 

I feared as much but was holding out for a workaround. 😉

I guess one workaround might be to use parameters and trigonometry....

[HughesTooling]

One option if there are no dependencies between the components is dragging the later component and all it's features to just before the sketch you want to project into.

Mark

[maker9876]

Good point. Thx.