AutoCAD technologies for cad drafting services
Distinguish between 2D (two-dimensional) and 3D (three-dimensional) technologies of design and construction of a drawing (D — from the English “ dimension “ dimension).
Cad drafting services use 2D technology, the designer builds projections of the object being created, that is, its flat images — views, sections, sections, etc. The design is carried out simultaneously with the creation of the drawing of the object. 2D technology is based on descriptive geometry. This is a traditional, age-old technology and is still the main one today.
A sheet of paper,a pencil and a drawing board make up the entire arsenal of her technical means. Computer versions of 2D technology are also widespread, in which the computer is used as an electronic drawing board, which allows the designer to relieve the designer from the routine graphic work of drawing lines of the required thickness, making inscriptions in a certain font, arrows of the desired shape, etc., no more.
The essence of 3D design technology of Cad drafting services is that the designer immediately builds a realistic, visual, virtual model of a part, node or building, assembling it from volumetric primitives (prism, cylinder, cone, etc., as well as primitives based on the rotation or displacement of a flat contour), without resorting to building a drawing.
The model is formed on the screen, it can be examined from all sides, cut, get an arbitrary section, and edit the shape. With the help of software tools, the model can be loaded and its strength calculation performed. For architectural objects — build a perspective, photo realistic image, etc. This natural design option has become possible in the last ten years thanks to computer graphics,
Drawings for 3D technology are obtained after the model is created, i.e. at the final design stage and, to a large extent, in automatic mode. The “system” itself builds the necessary views, sections, in the first approximation puts down dimensions, although the designer is left with the task of determining the optimal content of the drawing. In this way, an intellectual unloading of the designer is carried out.
3D technology based on modern computer technology and software is actively included in design practice. The software market is filled with CAD (Computer Aided Design) packages that implement 3D technology. These are AutoCAD, Mechanical Desktop, Inventor, Solidworks, Compass 3D. Packages for builders and architects: ArchiCAD, Architectural Desktop, etc.
Their implementation in usa is very active. There is no doubt that as specialists are trained in new methods of work, 3D technology will become the predominant method of design and engineering.A special place among software products is occupied by AutoCAD (Automated Computer Aided Drafting and Design). AuloCAD is an Autodesk product.
This is the most widespread CAD package in the world and available in usa, the study of which should be included in the basic training of an engineer today. Based on the AutoCAD package, it is easy to master new methods of design and drawing construction. After AuloCAD, you can easily move on to work in other CAD packages.