CATIA V5-6R2018: Advanced Assembly Design and Management
1–10 © 2019, ASCENT - Center for Technical Knowledge®
1.5 Assembly Constraints
When creating features for part models, parent/child
relationships result from geometrical, dimensional, and depth
option references between features. When working with parts in
a Product file, parent/child relationships are established through
assembly constraints.
Assembly constraints are created using the Constraints toolbar
shown in Figure 1–7.
Figure 1–7
The constraints are described as follows:
Icon
Description
Coincidence: Aligns axes, planar surfaces, planes, and points.
Contact: Mates two planar surfaces and can force curved
surfaces to touch.
Offset: Specifies an offset distance between two planar
elements.
Angle: Permits a keyed-in value between planar selections.
Parallel and perpendicular can also be specified.
Fix: Constrains a component in 3D space. This option
constrains all six degrees of freedom.
Fix Together: Prompts you for a name and applies a Fix
constraint between two or more components.
Quick Constraint: Enables the system to automatically select
the constraint to use, based on your selection. This constraint
can be changed later.
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