Assembly Constraints

What's New: 2027.1, 2027.2

Assembly constraints establish the orientation of the components in the assembly and simulate mechanical relationships between components.

For example, you can:

• Mate two planes.
• Specify that cylindrical features on two parts remain concentric.
• Constrain a spherical face on one component to remain tangent to a planar face on another component.

Each time you update the assembly, the assembly constraints are enforced.

Temporarily show Origin geometry while adding constraints

While using the Constraint command, you can temporarily display the Origin geometry of the selected component, including origin planes, axes, and the origin point. Use one of the following methods:

• Hover over the desired component, then press and hold the Alt key to display its Origin geometry. When you hover over an empty area, the Origin geometry of the top-level assembly is displayed.
• If the graphics area is too cluttered to easily hover over the desired component, select Pick Component First, choose the component, and press and hold the Alt key to display its Origin geometry.