Mates can be added only to end fittings, such as flanges, tees, reducers, and in-line valves, in a route subassembly. If you delete the mates on an end fitting, or if you insert an end fitting at the end of a 3D sketch segment, the position of the end fitting becomes driven by the 3D sketch.
- If you want the end fitting position to drive the 3D sketch, right-click the end fitting and select Constrain Sketch to Fitting.
- To restore the fitting to driven status, right-click the end fitting and select Constrain Fitting to Sketch.
- If the fitting is fixed or mated, it always drives the sketch, and its status cannot be changed.
The position of all other components in a route subassembly is always driven by the 3D sketch.