Which is the leader line in dimensioning and tolerancing?

Which is the leader line in dimensioning and tolerancing?

 Arrowsare placed at the ends of dimension lines to show the limits of the dimension. Extension lineis the thin solid line perpendicular to a dimension line indicating which feature is associated with the dimension.  Leader lineis the thin solid line used to indicate the feature with which a dimension, note, or symbol is associated.

What’s the difference between leader line and extension line?

Extension line is the thin solid line perpendicular to a dimension line indicating which feature is associated with the dimension. Leader line is the thin solid line used to indicate the feature with which a dimension, note, or symbol is associated. Tolerance is the amount a particular dimension is allowed to vary.

How to add an arrow to the end of a leader line?

To add an arrowhead to the end of a leader line, change the line symbol type to Cartographic Line Symbol and on the Line Properties tab add a Line Decoration. If you are using leader lines, the leader tolerance is the minimum distance between the leader anchor point and text at which the leader line will appear.

Where do you place a directed leader on a feature?

A Directed Leader can be oriented at any angle with respect to the surface of the feature and can be placed in an annotation plane parallel to the feature axis. Circular arrowhead handles appear on dimension arrows when you select dimensions.

Why is tightening tolerances important in GD & T?

Tightening tolerances by a factor two can raise the costs twofold or even more, due to higher reject rates and tooling changes. GD is the system that allows developers and inspectors to optimize functionality without increasing cost.

When to use general tolerance or general tolerance?

Use a general tolerance defined at the bottom of the drawing for all dimensions of the part. Specific tighter or looser tolerances indicated in the drawing will then supersede the general tolerance. Tolerance functional features and their interrelations first, then move on to the rest of the part.

How are dimensions and tolerancing used in design?

To improve clarity, draw dimensions and tolerances outside of the part’s boundaries and applied to visible lines in true profiles, employ a unidirectional reading direction, convey the function of the part, group and/or stagger dimensions, and make use of white space. Always design for the loosest feasible tolerance to keep costs down.