Essentials Course.book

Lesson 2
Introduction to Sketching
SolidWorks 2006 Training Manual
Over Defined
Additional Colors
Rules That
Govern
Sketches
The sketch has duplicate dimensions or conflicting relations and it
should not be used until repaired. Extraneous dimensions and relations
should be deleted. Over defined geometry is red (by default).
There are several additional colors and states that may appear for
geometry in the sketch. Dangling (brown), Not Solved (pink) and
Invalid (yellow) all indicate errors that must be repaired.
Different types of sketches will yield different results. Several different
types are summarized in the table below. It is important to note that
some of the techniques shown in the table below are advanced
techniques that are covered either later in this course, or in other
advanced courses.
Sketch Type Description Special Considerations
A typical “standard”
sketch that is a neatly
closed contour.
Multiple nested
contours creates a boss
with an internal cut.
Open contour creates a
thin feature with
constant thickness.
Corners are not neatly
closed. They should be.
Sketch contains a selfintersecting
contour.
None required.
None required.
None required. For more information, see
Thin Features on page 359.
Use the Contour Select Tool. For more
information, see Sketch Contours on
page 258.
Although this sketch will work, it
represents poor technique and sloppy
work habits. Do not do it.
Pre-Release
Do not copy or distribute
Use the Contour Select Tool. For more
information, see Sketch Contours on
page 258. If both contours are selected,
this type of sketch will create a Multibody
Solid. See Multibody Solids in the
Advanced Part Modeling course.
Although this will work, multibodies are
an advanced modeling technique that you
should not use until you have more
experience.
30 Rules That Govern Sketches