how do I cut/trace a curve on a sheetmetal part in an assembly along an interface from another part?

I would like to model a part according to interference dimensions in an assembly to be more specific I would like to create a cut out in a sheet metal which coincides a curve

1 Answer

I believe I understand the question but let me know if I misinterpreted...

In the assembly, right click the part which needs the hole and select "edit part". Start a new sketch on the correct surface. Select the curve (or part you want to coincide with) and once its selected click on "Convert Entities"

This will convert the selected edge into the same profile, but inside of the new sketch. After that's done, extrude/cut as normal. You'll be left with the exact same profile as the adjacent part. In you need room for clearance you'll need to handle that separately. "Offset Entities" will work