Add a Coincidence Constraint

General

  • Planar surfaces are coincident when they are on the same space plane.
  • The lines (segments) are coincident when they lie on the same line passing through space.
  • The points are coincident when they overlap.
  • A point is coincident to a line when the point is on the same spatial line as the line (segment) or on the same arc or extension of the arc.
  • If the result is not desired, you can flip the Coincidence constraint, if the coincidence is applied to a surface.

Add a coincidence constraint between parts

  1. On the tab, in the Constraints group, select Add coincidence constraint.
  2. Select a face, line, or a point from the first part.
  3. Select a face, line, or a point from the second part.
    • The program moves the parts to the location defined by the constraint.
  4. If the position of the parts is not satisfactory, you can select the function from the auxiliary menu: Flip previous constrain.
  5. Continue repeating steps 1 ... 4 until all the desired constraints have been added.
  6. Stop adding the coincidence constraint:
    • Select another function.
    • Press the Esc key.
    • Press the V key (Confirm).
    • Select the context-sensitive function OK.
    • Click the middle mouse button.
Note:
  • You can also use this function by first selecting the two parts, and then
    • The ribbon bar function Coincidence or
    • The context-sensitive function Constraints > Coincidence.
    • Select the second part Ctrl+left mouse button.
  • You can define a constraint as configuration-specific by selecting the constraint and then selecting the context-sensitive menu function Edit.

    Edit Constraint

  • Zoom the part view by the Z key to select an element. Zoom all by pressing the A key.
  • Move a part by moving the cursor onto a part, then moving the mouse while holding down the left mouse button.

Example 1: Parts connected with three face coincidence constraints

Example 2: Parts connected with two line coincidence constraints

  • This solution is a little faster to do than the previous one.
  • If you are designing a complicated product automation system, prefer this way when adding coincidence constraints.