2009

Parent/child relationships exist between features, which means that one feature
controls another. There can be multiple levels of parent/child relationships.
A child feature is created after the parent feature, and cannot exist without a
parent feature. For example, you can create a boss on a casting, and it may or
may not have a hole drilled in it, depending on the application. The boss (the
parent) can exist without the hole (the child), but the hole cannot exist without
the boss.
Part Modeling Environment
The part modeling environment is active any time you create or edit a part.
In the part modeling environment, create or modify features, define work
features, create patterns, and combine features to create parts. Use the browser
to edit sketches or features, show or hide features, create design notes, make
features adaptive, and access properties.
Your first sketch for a part can be a simple shape. You can edit features after
you add them, so you can develop your design quickly. Throughout the design
process, add geometric and dimensional detail and constraints to improve
your models. Evaluate design alternatives by changing relationships and
constraints, or adding and deleting features.
The browser displays the part icon, with its features nested below. Surface
features and work features are nested, or consumed by default. To edit a feature,
right-click it in the browser or the graphics window. From the context menu,
select Edit Feature to revise the feature creation parameters or Edit Sketch to
revise the underlying sketch. To control nesting, or consumption of surface
and work features for all features, set the option using the Tools ➤
Applications Options, Part tab. To override consumption on a per-feature
basis, right click the feature in the browser, and then select Consume Inputs.
54 | Chapter 3 Working with Sketched Features