Add a Coincidence Constraint

General

• Two line segments are coincident when they are on the same line.
• Two points are coincident when their position is the same.
• A line segment and a point are coincident when the point is on the line.
• An arc and a point are coincident when the point is on the arc or on its imaginary extension.
• If you add a Two-point Line so that you point the start and/or end point from another line or the end point of another line, a coincidence constraint is created automatically between the end point of the line that you add and the clicked line. Similarly, a coincidence constraint is created between the end point of the line and the center of an arc or circle.
  • Coincidence constraint is also automatically created when you add a Polyline if you click its points from other lines or their end points.
• You can also add a coincidence constraint to the sketch plane (auxiliary plane) added to the 3D sketch or to its lines or points.

Define a coincidence constraint in the 3D sketch

1. Select the function 3D Sketch | Constraints | Coincidence or
   • Select the context-sensitive function Constraints > Coincident.
2. Select the first line or point.
   • This line or point remains in place unless the other line or point is locked in place with constraints.
3. Select the second line, point, or face
   • This line or point will move so that it is coincident with the first line or point.
   • If a line, point, or face is locked in place, the first line or point moves.
4. Repeat steps 2 to 3 to add new coincidence constraint
5. Stop adding coincidence constraints
   • Select another function or
   • press the V key or
   • press the Esc key or
   • click the middle mouse button.