Define the Reference Constraints for a Part

General

• Parts that are going to be positioned together in an assembly with reference constraints must, as a rule, have constraint sets with the same name so that the constraints of the sets can meet.
• When a part is added to the assembly and a part without a constraint set is specified, the program recognizes the element under the cursor and its shape and tries to create a constraint according to the constraint set.
  • This way, for example, the bearing can be placed on the shaft without having to make a constraint set for the shaft.
• There may be several constraint sets in a part.
• Each constraint set in one part or assembly must have a unique name.

Define the Reference Constraints

1. In the part’s feature tree, right-click Reference Constraints.
2. Select New.

   

3. Enter the Reference Constraint Code.
   • The constraint code must be the same for all parts
4. Select the Primary Constraint by clicking the arrow button and click an element in the model.
5. Select the geometric constraint from the list.
6. Select the constraint's direction from the list.
   • It is often worth settling for the default direction offered by the program and trying to see if it works.
7. If you selected a distance constraint, enter the value of the distance.
8. Define the secondary and third constraint in the same way.