Creo ModelCHECK counts the number of features in the model and makes sure that there are no rounds or drafts created within the first specified percentage of all the features. This percentage is specified in the configuration file defined by the system administrator.

A draft feature is used in molded and cast parts. When draft is used, it is typically applied to all surfaces of the model. Therefore, applying draft near the end of model creation is good design practice; it avoids undesirable parent-child relationships and allows you to apply draft in only one step.

Rounds are most often applied to a part after the design is complete to give it a finished look and to eliminate sharp edges. If they are added to models too early in the design stage they may effect the model when additional features are added, and undesirable Parent-Child Relationships may be created.

In the above example, draft was added to the button too early in the design and as a result, the shell, protrusion and cut do not have draft applied to them. This part will be impossible to mold.