Automatic Constraints and Dimensioning

This function can be used to define the constraint and dimension types to be added to a model sketch automatically. Define the data in the dialog box.

Dialog Box Options

General settings

Defines how dimensions and constraints are added automatically to a sketch.

Constrain all: The sketch in editing mode is dimensioned automatically.

Constrain while sketching: Dimensions and constraints are added to the sketch automatically while sketching.

Round to dimensioning accuracy: The added dimensions are rounded to the dimensioning accuracy. Dimensioning accuracy

Note: Geometry is changed to match the rounded dimensions.

The automatic dimensions/constraints will be added once you have accepted the data in the dialog box. You must define the dimension and constraint types before accepting the data.

Note: Disable automatic adding of dimensions and constraints by unselecting Constrain all and Constrain while sketching.

Constraints

Defines the constraint types to be added to a sketch. You can select or deselect a constraint type by clicking the checkbox. You can select or deselect all dimensions by clicking the Select all button. The available constraint types are: Concentric, Perpendicular, Parallel, Coincident, Tangential and Equal Radius.

Note: The Symmetry, Equal Distance and Midpoint constraints cannot be added automatically.

Linear tolerance

Defines the linear tolerance (D) with which the constraint will be realized.

Select the Concentric constraint. Define the linear tolerance value as 5 and accept the data. The automatic constraint will be added if the center points of the circles are located in the tolerance area 0 < D < 5.

Angle tolerance

Defines the angle tolerance (a) with which the constraint will be realized. The tolerance area is 0 < a < 45 degrees.

Select the Perpendicular constraint. Define the angle tolerance value as 15 and accept the data. The lines will be made Perpendicular when they are in the tolerance area 0 < a < 15. The Perpendicular constraint is realized for two pairs of elements in the sketch. An element affected by a constraint can also be a coordinate system axis.

Dimensioning

Defines the dimension types to be added to a sketch. You can select or deselect a dimension type by clicking the checkbox. You can select or deselect all dimensions by clicking the Select all button. The available dimension types are: Radius and Diameter, Angle, and Distance. Automatic dimensioning uses Diameter Dimensioning for circles.