Cad (Computer Aided Design)
Computer-aided design (CAD), also known as computer-aided design and drafting (CADD), is the use of computer technology
for the process of design and design-documentation. Computer Aided Drafting describes the process of drafting with a computer.
CADD software, or environments, provides the user with input-tools for the purpose of streamlining design processes; drafting,
documentation, and manufacturing processes. CADD output is often in the form of electronic files for print or machining operations.
Beginning in the 1980s Computer-Aided Design programs reduced the need of draftsmen significantly, especially in small to
mid-sized companies. Their affordability and ability to run on personal computers also allowed Architects and Engineers to do their own drafting work,
eliminating the need for entire departments. In today's world most, if not all, students in universities do not learn drafting techniques
because they are not required to do so. The days of hand drawing for final drawings are almost obsolete. Universities no longer require
the use of protractors and compasses to create drawings, instead there are several classes that focus on the use of CAD software.
It is unfortunate that drawing by hand, without the use of a computer, has all but disappeared. Many times, an Architect or Engineer may
meet with a Client for lunch, and they may discuss business. It is useful for the Architect or Engineer to convey a thought on a napkin or
a piece of paper. In many cases, the Architect or Engineer that can transmit an idea, or thought, in this manner will have an advantage over
the individual that can only use a computer.
Current computer-aided design software packages range from 2D vector-based drafting systems to 3D solid and surface modellers.
Modern CAD packages can also frequently allow rotations in three dimensions, allowing viewing of a designed object from any
desired angle, even from the inside looking out. Some CAD software is capable of dynamic mathematic modeling, in which case it
may be marketed as CADD (computer-aided design and drafting).
The following Wire Frames and Renderings were prepared by 3 different Rendering Programs.
Each program starts with a Floor Plan. The Floor Plan is either Defined by providing the height of the Walls prior to Drawings the Plans,
or they are defined afterwards, by selecting them. Components are added as the plan is developed, along with material selection and colors.
Each program has certain advantages and disadvantages. It is suggested that you obtain Demos and test the ease of entering information,
and what you feel most comfortable with.
It must be noted that the most expensive program, does not mean it is the best, so be sure to do your own research before purchasing a program.
There are also some free Rendering Programs on the Web.
3 Examples: (A, B and C, by Different Rendering Programs)
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