Datasheet

Waguespack c01.tex V2 - 08/30/2008 1:44pm Page 22
22 CHAPTER 1 INVENTOR DESIGN PHILOSOPHY
Developing an Efficient and Stable Part-Modeling Workflow
Paramount to the success of 3D solid modeling is developing an efficient and stable part-modeling
workflow that works for your designs. Here are a few attributes of good part design:
◆ Sketched part features created from simple sketches that represent and document design
intent
◆ Creation of part features that do not have a high degree of dependency upon other
previously created part features
◆ Part features that are easily identified and able to be edited without creating errors
◆ Fully constrained and dimensioned sketches and features that will update and behave
predictably when other features are edited
◆ Features that are properly named and identified for future editing reference
◆ Part creation workflow that is easily understood by other people, should editing be
necessary in the future
◆ Practicing restraint in creating large numbers of duplicate features, when identical features
could be combined into a single feature
◆ Developing a good workflow that will be repeated in future design projects, providing
consistency and design, and helping others to understand and follow good design
practices
Sean Says: A Solid Sketch Is the Foundation on which Stable Parts Are Built
Many new users do not understand the importance of having a grounded, fully constrained base
sketch. It can be highly frustrating to have a model fail when you make a simple change, all because
the base sketch was not properly constructed.
Developing Assembly Structure for Maximum Efficiency
Developing an efficient assembly structure is essential for success and maximum performance-
break in the 3D modeling environment. Poor assembly design will plague the design process
throughout the entire life of the job, often creating large assemblies that cannot be rotated for
view, cannot be used to create 2D drawings, or often break down requiring many hours of repair
and constant attention.
You can avoid the nightmares of poor assembly design structure with the proper use and
understanding of how assembly files work. A properly designed assembly structure possesses the
following qualities:
◆ A top-level assembly will be composed of numerous subassemblies constrained to one
another. The use of individual parts within the top-level assembly should be limited.
◆ All components within a top-level assembly must be properly constrained to one another
so that they will move or not move as they would in the real world. All adaptive compo-
nents should have adaptivity turned off when adaptivity is not required at that particular
moment.