CAD Flashcards
review
is a technique where engineering drawings
are produced with the assistance of a computer and, as with manual drawing,
is only the graphical means of representing a design
Computer-aided drafting (CAD)
is a process of preparing a drawing of an object on
the screen of a computer.
Computer Aided Drafting
The use of CAD process provides enhanced graphics capabilities which allows
any designer to:
Conceptualize his ideas
* Modify the design very easily
* Perform animation
* Make design calculations
* Use colors, fonts and other aesthetic features
Application of CAD in Various Engineering field:
Aerospace, Chemical, civil, archi, electrical electronics, industrial & manufacturing mechanical automotive
Benefits of CAD:
- Improved productivity in drafting
- Shorter preparation time for drawing
- Reduced man power requirement
- Customer modifications in drawing are easier
- More efficient operation in drafting
- Low wastage in drafting
- Minimized transcription errors in drawing
- Improved accuracy of drawing
- Assistance in preparation of documentation
10.Better designs can be evolved - Revisions are possible
- Colors can be used to customize the product
- Production of orthographic projections with dimensions and tolerances
- Hatching of all sections with different filling patterns
- Preparation of assembly or sub assembly drawings
- Preparation of part list
- Machining and tolerance symbols at the required surfaces
- Hydraulic and pneumatic circuit diagrams with symbols
- Printing can be done to any scale
computer drawing is the representation of an object in
the single-view format which shows two of the three object dimensions or the
multi-view format where each view reveals two dimensions. In both cases, the
database includes just two values for each represented coordinate of the
object. It can also be a pictorial representation if the database contains X, Y
coordinates only
Two-dimensional (2D)
computer drawing is the process of creating threedimensional models using professional CAD software. This type of drafting is
used by specialists in many industries, including architecture, engineering, and
construction.
Three-dimensional (3D)
The computer can only accept electronic signals as information, but there are a plenty
of ways to produce the necessary signals
input devices
input devices ex:
keyboard, mouse, joy stick, scanner and digitizer
The purpose of this unit is to produce the results of the software.
Output devices
Output devices ex:
Monitor, plotter, printers, storage
s an interpreter which allows the user to perform specific
type of application related to CAD software
software
a very popular software package that provides computer aided
design and drafting (CADD) capabilities for micro computers.
autocad
