, SOLUTION MANUAL AutoCAD 2026 Tutorial
Second Level 3D Modeling By Randy H. Shih
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
6- Test Bank Solutions at the End of the Chapter
Our email:
, AutoCAD ® 2026 3D Tutorial Solution Manual 1
Ch. 1 Review Questions:
1. What is the difference between WCS and UCS?
WCS stands for world coordinate system.
Although a number of different coordinate systems can be used to create and
manipulate objects in a 3D modeling system, the objects are typically defined and
stored using the world space. The world space is usually a 3D Cartesian coordinate
system that the user cannot change or manipulate.
UCS stands for user coordinate system.
In most engineering designs, models can be very complex, and it would be tedious
and confusing if only the world coordinate system were available. Practical 3D
modeling systems allow the user to define Local Coordinate Systems (LCS) or User
Coordinate Systems (UCS) relative to the world coordinate system. The UCS is a
local coordinate system that can be aligned to the world coordinate system, an
existing face of a part, or a predefined plane. By default, the UCS is aligned to the
XY plane of the world coordinate system.
2. List and describe two available options to manipulate the UCS origin.
[Tools] → [New UCS] →
[Origin]
• This option can be used
to reposition the User
Coordinate System.
• Use the X Axis Rotate option in the UCS toolbar
to rotate the UCS about the X-axis.
3. Describe some of the advantages of using the AutoCAD Thickness option over
creating 2D or 3D models.
In AutoCAD, the thickness of an object determines the distance that the object is
extruded above or below its current Z-elevation. Some of the advantages include: The
thickness option allows an very easy way to adjust the height of the design. The
construction of a 3D model can be done quickly by creating 2D geometry.
4. In the tutorial, which commands were used to eliminate the hidden lines on the
screen?
The Hidden command was used to eliminate the hidden lines on the screen.
Second Level 3D Modeling By Randy H. Shih
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
6- Test Bank Solutions at the End of the Chapter
Our email:
, AutoCAD ® 2026 3D Tutorial Solution Manual 1
Ch. 1 Review Questions:
1. What is the difference between WCS and UCS?
WCS stands for world coordinate system.
Although a number of different coordinate systems can be used to create and
manipulate objects in a 3D modeling system, the objects are typically defined and
stored using the world space. The world space is usually a 3D Cartesian coordinate
system that the user cannot change or manipulate.
UCS stands for user coordinate system.
In most engineering designs, models can be very complex, and it would be tedious
and confusing if only the world coordinate system were available. Practical 3D
modeling systems allow the user to define Local Coordinate Systems (LCS) or User
Coordinate Systems (UCS) relative to the world coordinate system. The UCS is a
local coordinate system that can be aligned to the world coordinate system, an
existing face of a part, or a predefined plane. By default, the UCS is aligned to the
XY plane of the world coordinate system.
2. List and describe two available options to manipulate the UCS origin.
[Tools] → [New UCS] →
[Origin]
• This option can be used
to reposition the User
Coordinate System.
• Use the X Axis Rotate option in the UCS toolbar
to rotate the UCS about the X-axis.
3. Describe some of the advantages of using the AutoCAD Thickness option over
creating 2D or 3D models.
In AutoCAD, the thickness of an object determines the distance that the object is
extruded above or below its current Z-elevation. Some of the advantages include: The
thickness option allows an very easy way to adjust the height of the design. The
construction of a 3D model can be done quickly by creating 2D geometry.
4. In the tutorial, which commands were used to eliminate the hidden lines on the
screen?
The Hidden command was used to eliminate the hidden lines on the screen.
