AutoCAD 3D Modeling: Editing Solids, Part 3
September 10, 2003 The SOLIDEDIT command offers different
options to edit solid objects. The options cover face editing,
edge editing and body editing. I have designed a series of
tutorials to cover all these options. Every tutorial explains
one or more options.
In this tutorial I show you how to use Offset Faces. You can
reach this option through Solids Editing toolbar [Figure 1].
This option deals with faces of the solid model.
Figure 1
Notes:
- This tutorial is designed for AutoCAD 2004 though might be
applicable to other releases.
- In this tutorial user entries are in boldface.
- The
8
symbol represents pressing Enter.
1. Download
r16_offset_faces.dwg. The file consists of a solid with two
holes [Figure 2].
Note:
If you are using AutoCAD 2002 or an earlier release download
r15_offset_faces.dwg.
Figure 2
2. Switch to 2D
Wireframe shade mode [Figure 3].
Figure 3
3. Invoke Offset
Faces (Modify menu > Solids Editing > Offset Faces).
4. Click the border
of the hole on current XY plane. The front face of the solid and
the inner face of the hole are selected at the same time.
5. While pressing
Shift, click the border of the solid to deselect it. Now the
only selected face is the inner face of the hole [Figure 4].
Figure 4
6. Press Enter.
7. Enter 1
as the offset distance. As you see the radius of the hole is
decreased. When you enter positive offset distances the total
volume of the solid increases. That's why the radius of the hole
decreases [Figure 5].
Figure 5
8. Use the similar
method to increase the radius of the back hole by 1 unit [Figure
6]:
Specify the offset distance: -1
8
Figure 6
Alireza Parsai is the founder of cadpanel.com. He is a
mechanical engineer with more than 12 years experience with
AutoCAD. Alireza is an Autodesk Authorized Author, the AutoCAD
consultant for Al Khawarizmi Institute, a contributing editor
for Augiworld magazine, a writer for CAD Digest, and an
instructor for AUGI Training Program. He has written 8 books in
Farsi, 3 booklets in English, and more than 100 articles for
different magazines and newsletters. You can reach Alireza at
alireza.parsai@cadpanel.com or visit his website
www.cadpanel.com .
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