Common origin modeling refers to how components are constrained in an assembly. Components are constrained to the assembly origin or a single set of work geometry. Common origin modeling is often used in the automotive industry.
You can apply common origin modeling later in the design process as well. Components are constrained together using traditional methods. Then those constraints are deleted later. You apply new constraints using the assembly origin and the Predict Offset option.
Advantages
- Constraints are not dependent on component geometry. Therefore, changes to geometry do not affect constraints.
- The assembly can be split into smaller elements for collaboration.
- Easy use of simplified components.
Disadvantages
- Geometry changes must be considered relative to the assembly origin to determine proper positioning.
- Cannot simulate motion based on constraints.
Inventor commands
- Construction geometry and UCS
- Predict Offset option for constraints
- Suppress constraints