Error - 'Part is Non - Manifold'

[jbscott2121]

What does this mean, it occured while trying to shell

[Anonymous]

In the case of a Shell Feature the condition probably is the result
of having four coincident surface edges. If they are paired incorrectly
a non-manifold condition will exist. The attached looks like a pretty
good reference...

wrote in message news:5873406@discussion.autodesk.com...
What does this mean, it occured while trying to shell

[Anonymous]

First choice in Google when you search on "non-manifold part" Google almost
always works.......

http://www.eod.gvsu.edu/eod/design/design-160.html


wrote in message news:5873406@discussion.autodesk.com...
What does this mean, it occured while trying to shell