Set the Sketch Constraint to External Geometry

When editing a part of an assembly, it is possible in the sketch to make use of the geometry of another part of the assembly when giving constraints. The function can therefore be used to link two parts of the assembly to each other. The function is used as follows:

1. Edit a part in an assembly.
   • Double-click the part or
   • Select the part and then select the context-sensitive function: Edit.
2. Work with a sketch
   • Either create a new sketch or
   • edit an old sketch.
3. Active Use external geometry with sketch constraints from the tool strip.
   • If the button is not selected (), sketch constraints cannot be applied to elements in other parts.
4. Now you can add constraints to the elements of another part in the sketch.
5. Click to accept the sketch and create the feature.
6. Accept the changes made to the part and return to the assembly using
   • the function on the ribbon bar: or
   • the context-sensitive function: OK.

Test the functionality of the external reference