SolidWorks 2010 Bible

CHAPTERCHAPTER

Modeling in Context

IN THIS CHAPTER

Evaluating in-context modeling

pros and cons

Examining the pros and cons of

in-context modeling

Understanding inserted, split,

and mirror parts

Understanding the Layout

workflow

Working in-context tutorial

Working with a layout tutorial

I

n this chapter, I present best practice suggestions and offer a balanced
explanation so that you can evaluate the benefits and potential problems
associated with in-context modeling. I give you enough facts so that you
can decide for yourself how in-context techniques fit into your process.

In-context modeling is an extremely powerful technique for extending para-
metric design from individual parts to top-level assemblies. With the power
comes potential for mistakes. If you are not careful, in-context modeling can
lead to unexpected results.

Understanding In-Context

Modeling

In-context modeling is also known as top-down modeling. It is a technique

used to create relationships between parts in the context of an assembly,

where the geometry of one of the parts is controlled by both the other part

and the mates that position them relative to one another.

In-context, or top-down, modeling may be contrasted against bottom-up

modeling. Bottom-up modeling involves making the parts in their own

individual windows and assembling the finished parts into an assembly

with mates.

In its most common form, a sketch in one part in an assembly is related

to an edge in another part in the assembly. The relationship is specific to

that particular assembly, and is only relevant in the context of that assembly.