SolidWorks users don't have the control needed when using SolidWorks
and it's obvious that most SolidWorks users don't care about having
the needed control.
http://machinedesign.com/ContentItem/68359/HowwasthatmodelbuiltSoftwaretellsall.aspx
"Have you ever had to edit an assembly or a part designed by someone
else, or change a model you designed a long time ago? If so, you know
how difficult it is to decipher the mate relation****ps in assemblies
and dependencies between part features. That's because modern solid
modeling lets users create complex relation****ps, without even being
aware they are doing so. For example, a user might add a fillet, which
generates relation****ps between the arc of the fillet and the features
that created the edges. Editing models can thus lead to unpredictable
results, such as lost design intent or features that fail when
rebuilding models."
Jon Banquer
San Diego, CA
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