The design sketch of CAD (CAD is Computer Aided Design) was built on a paper sheet, and then this paper sheet would be traced on a traced paper on finalisation. This process is time consuming and needs skilled labours. The checking of the drawing also takes a lot of time.
The technology of CAD was invented to speed up this process of design and to make this process more accurate. CAD is required for the generation of drawings. There are many types of software available in the market for CAD. Various companies develop these types of software.
There are many types of CAD designing software are available in the market, some well- known software are following-
There are such different softwares are available for drafting and designing. These softwares have a “datum zero” which is located in the space. The users can select the type of unit system which they want to use in their design. The two available unit systems are-
The softwares mentioned in the above list have the facility of both 2D and 3D drawings. The screen of AUTOCAD is used for drawing the design. There are some sets of commands which are used to build the drawing.
These commands are drawing commands, and these types of commands are used to adjust the drawing.
All those commands have shortcuts in Autocad to avoid the mistakes in typing. The dimension style of drawing can be selected before starting the drawing. The dimension style allows the user to dimension as per their requirement. The drawings are done layer by layer. The layers help to colour different parts. So, every drawing project made in Autocad will have the same layer properties. There are some of the following commands which make that work much easier are-
Area: The area command is used to measure the surface area of the object.
Block command: Once elements define a block there will be no change in the block. This will helps us to avoid the repetitive work.
Region: Defines a particular area in the drawing. This command mostly used when we are doing 3D modelling in Autocad.
After completing the drawing it can be printed out from the computer.
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