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Computer Aided Design

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Computer-Aided Design " CAD " term was originally known as Computer Aided Drafting. The change from drafting to design happened due to the fact that technical drawings are no longer made manually " as in the era of drafting ", but are made digitally. The CAD has grown as technology progressed. One of the most significant changes was the addition of the third dimension " 3D ".

Different types of CAD

There is a wide variety of sectors in which CAD is used: from architecture to automotive. Therefore, depending on the different types of designs there are also different types of CAD. In general, three are distinguished:

- 2D CAD: for two-dimensional technical drawings.
- 2 ½D CAD: a 2D extension with some three-dimensional characteristics for production.
- 3D CAD: for complete three-dimensional technical drawings.

Today, 2D CAD is still being used a lot, but companies are passing 2 ½D and 3D CADs. This happens because these types of CAD are more interesting to make production models " such as when designing a car engine ". By adding the third-dimensional data to the design, it changes the name from CAD to computer -aided manufacturing " Computer-Aided Manufactoring, CAM ". In CAM, 3D technical drawings are interpreted and instructions are created for the machines responsible for producing the product.

An even more advanced CAD technical drawing form is building information modeling. The building information modeling is best known for its acronym BIM " Building Information Modeling ". The BIM is a 3D technical model that reflects the building materials that are needed, for example, to build a bridge, and what characteristics these materials should have. Therefore, the BIM is a form of automated intelligent design that ensures the firmness of the materials, which combine well, etc. When used, construction failures are minimized.

Integration of business software with CAD

Most CAD programs require communicating with the ERP system since the drawings in the program are the basis of other core processes within the company. The companies that have a great integration of CAD software in the ERP package are those that combine design and production. An example of one of these companies is Airbus.

CAD drawings also go through adaptations, revisions of different users or adjustments according to customer comments. Therefore, the central control of versions of CAD drawings is very important. Keep in mind that not all document management systems can manage CAD drawings well. An added difficulty when looking for a document management system is that the company uses different CAD programs. Therefore, it's very important to find out which management systems comply with the full integration of CAD.


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