What is dimensional constraint in CATIA?

What are dimensional constraints?

Dimensional Constraints control the distance, length, diameter, radius, and angle values of entities. Changing the value of Dimensional Constraints changes the dimension of the related entities.

What are Catia constraints?

To create a precise 2D sketch in CATIA, we use constraints. What does “constraint” actually means? It means that we are restricting the degree of freedom of the sketch. Consider, you want to constraint a line. If you provide its length, then it ensures that the length of the line is under control.

What is the difference between geometric and dimensional constraints?

Geometric constraints are used to control the relationships of objects in respect to each other. Dimensional constraints are used to control the distance, angle, radius, and length values of objects.

What are constraints in sketch?

Geometric constraints are created automatically between lines, arcs, and other geometry as you sketch. Constraints can also be manually applied after the sketch geometry exists to stabilize sketch shape or position. These geometric constraints allow the sketch to be edited with predictable results.

What are the types of geometric constraints?

For example, the Fix, Horizontal, and Vertical Geometric Constraints act on a single entity, whereas Perpendicular, Parallel, Tangent, and others control two entities.

How do we distinguish between derived dimensions and regular dimensions on the screen?

How do we distinguish between derived dimensions and regular dimensions on the screen? Derived has parenthesis, regular doesn’t.

How do you create a geometric constraint in Catia?

option is active (Tools toolbar).

1. Select the geometrical elements to be constrained to each others, for example two lines to be set as parallel lines.
2. Click the Constraint with Dialog Box icon from the Geometry Modification toolbar. …
3. Modify the Constraint Definition dialog box. …
4. Click OK .

What is ISO constraint in Catia?

What do you mean by ISO-Constraints? If all of the degrees of freedom of geometry have been takes up by a consistent combination of dimensions & fixed geometry. That geometry is said to be ISO-CONSTRAINED. Geometry that still has some degrees of freedom is said to be UNDER constrained.

What does constraint mean in CAD?

In the design phase of a project, constraints provide a way to enforce requirements when experimenting with different designs or when making changes. Changes made to objects can adjust other objects automatically, and restrict changes to distance and angle values. With constraints, you can.

What is a tangent constraint?

Tangent constraints constrain an object’s orientation so that as an object moves along a curve, the object always points in the direction a curve. The curve provides the path of the object’s motion, and the object orients itself to point along the curve.

What is a parametric constraint?

Parametric constraints ensure that a drawing maintains its original precision by maintaining the relationships between an object and world space, between two objects, or within the object itself. There are two types of parametric constraints: dimensional and geometric.

What is a horizontal constraint?

Description. The Horizontal Constraint forces a selected line or lines in the sketch to be parallel to the horizontal axis of the sketch.

What are 2D constraints?

Control drawing entities parametrically by specifying geometric and dimensional properties. Easily define the relationships between entities and control their dimensions like length and angle.

What is a 2D sketch geometric constraint?

In a 2D sketch, geometric constraints are inferred and applied automatically as you sketch. Hold the Ctrl key down to temporarily disable applying constraints. In a 3D sketch, enable Infer Constraints in the status bar to automatically apply constraints as you sketch.