AutoCAD 3D Modeling: Extruded Solids
August 20, 2003 The EXTRUDE command creates 3D solids by
extruding closed polylines, circles, ellipses, closed splines,
or regions. The following tutorial shows you how.
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_extrude.dwg.
Note:
If you are using AutoCAD 2002 or an earlier release download
r15_extrude.dwg.
2. Open the drawing
in AutoCAD. The drawing consists of a region, an open U shape
polyline and a closed polyline (rectangle) [Figure 1].
Figure 1
3. Invoke EXTRUDE
(Draw menu > Solids > Extrude).
4. Create a pyramid
with the taper angle of 10 degrees and height of 3 units [Figure
2]. Select the rectangle as the base object:
Command: _extrude
Current wire frame density: ISOLINES=4
Select objects: 1 found
Select objects:
Specify height of extrusion or [Path]: 3
8
Specify angle of taper for extrusion <0>: 10
8
Figure 2
5. Invoke EXTREUDE
again. Extrude the region along the open polyline. Select the
polyline as the path of extrusion [Figure 3]:
Command: ext
8
EXTRUDE
Current wire frame density: ISOLINES=4
Select objects: 1 found
Select objects:
Specify height of extrusion or [Path]: p
8
Select extrusion path or [Taper angle]:
Figure 3
6. Change the
viewpoint with 3DORBIT [Figure 4].
Figure 4
Note:
For more information on 3D views read the following tutorial:
► AutoCAD 3D Modeling: 3D Views
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, an instructor
for AUGI Training Program, and an elected speaker for Autodesk
University 2002. He has written 7 books in Farsi, 3 booklets in
English, and more than 100 articles for different magazines and
newsletters. You can reach him at
alireza.parsai@cadpanel.com or visit his website
www.cadpanel.com.
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