Part Modeling > Engineering Features > Auto Round > About the Auto Round Feature
  
About the Auto Round Feature
The Auto Round feature enables you to create round geometry of a constant radius on solid geometry or on a quilt of a part or assembly. You can access the Auto Round feature by clicking Model, click the arrow next to Round, and click Auto Round.
The Auto Round feature is available in the Part mode for models with solid or quilt geometry. In the Assembly mode, the Auto Round feature is available for models with assembly-level quilts.
The Auto Round feature creates Round features called Auto-Round Members (ARMs) that are represented on the Model Tree as subnodes of the Auto Round feature. By default, the ARMs are not displayed on the Model Tree. However, you can display them. In the Model Tree, click > Tree Filters. The Model Tree Items dialog box opens. Under Feature types, select the Auto round member check box.
In the Auto Round feature, you cannot modify the order in which the ARMs are created. However, you can specify a value for the autoround_max_n_chains_per_feat configuration option to indicate the approximate number of edge chains that each ARM of an Auto Round feature can contain.
The system provides a default name for each Auto Round feature as you create it. The default name includes Auto Round and a sequentially incremented number, for example, Auto Round 1. The default name for each ARM of the Auto Round feature includes Auto Round # and a sequentially incremented number, for example, Auto Round 1 [1]. You can rename the Auto Round feature as a whole but you cannot rename the ARMs individually.
The Auto Round feature can have a maximum of two radii dimensions, one each for convex and concave edges. Convex and concave radii are attributes owned by the Auto Round feature.
You can define the result of an Auto Round feature while creating or redefining it. The result can be one of:
An Auto Round feature with subnodes
A round group
After you modify the model and the Auto Round feature is regenerated, the order in which the edges are rounded might change. Some edges that were not rounded before the modification may be rounded, while some edges that were rounded before the modification may not be rounded. The system creates geometry checks for edges or chains of edges that could not be rounded by the Auto Round feature and displays an appropriate message in the status bar. You can exclude these edges or chains of edges from the rounding operation by redefining the Auto Round feature.
You can obtain information on the ARM by right-clicking the ARM and choosing Information > Feature. However, you cannot perform feature operations such as suppress, resume, pattern, mirror, and so on, on the ARMs.