Can anyone give me some practical information on how to learn CAD quickly?

Go to the library. There are a lot of CAD learning tutorials inside.

The foundation is very important, step by step, practice makes perfect.

First, the foundation is very important

Practice has proved that the "manual drawing board" drawing ability is the basis of computer drawing ability, learning "AutoCAD", requires a certain amount of knowledge and ability to draw geometry, needs a certain ability to recognize the drawing, especially the ability to make geometric drawings, generally speaking, people with a high level of manual drawing, it is easier to learn, and the effect is better.

Second, step by step

The whole learning process should be done in a step-by-step way, first understand the basic knowledge of computer graphics, such as relative Cartesian coordinates and relative polar coordinates, so that you can master the use of AutoCAD technology from shallow to deep, from simple to complex.

3. Apply what you have learned

When learning AutoCAD commands, always combine them with practical application, and don't spend the main energy on learning each command in isolation; The principle of applying what you have learned runs through the whole learning process, so that you have a deep and vivid understanding of drawing commands, which is conducive to cultivating your ability to use AutoCAD to complete drawings independently.

Fourth, practice makes perfect

You should force yourself to make a few comprehensive examples, and draw the graph in detail, so that you can grasp the whole drawing process from a global perspective.

First of all, let's talk about my own experience of learning and using ACAD from scratch In school, I learned mechanical drawing, which is to lay on a drawing board and draw with a T-ruler, a triangle and a compass. Soon after joining the company, I worked on the drawing board for more than half a year, and together with my colleagues, I designed all the drawings of a production line, using rulers and gauges to make drawings. Soon after, I had the 05 version of ACAC, and I used it for a while, but I didn't think it was very easy to use.

The real start of drawing with ACAD is ACAD version 12. I bought a copy of "ACAD12 from Beginner to Mastery" written by an American, and studied it for about half a month. Learning is particularly fast due to the design and drawing tasks.

After a week, you will basically be able to draw mechanical drawings with ACAD. But my job is actually electrical engineering, and I think that drawing electrical drawings with ACAD is completely different from drawing mechanical drawings. In the case of mechanical drawings, blocks are simply used to set up the title block and bill of materials, as well as various standard descriptions of geometric tolerances, etc.

However, to draw an electrical diagram, a large number of Dynamo blocks need to be built because there are a large number of identical Dynamos. At the same time, these Dynamo Blocks, Drawing Formats, Cell Circuits, and Standard Control Schematics all need to be managed by dedicated menus, so the menus need to be modified. I modified the menus in the Autolisp language and set the menu reading format to make ACAD a dedicated drafting software.

AutoCAD version 13 started, using C++ to write the menu, the result of this 13 version (note that it is ACAD 13, not ACAD 2013

There are points to note:

1. The version should not be too high or too low, the version that is too high is unstable, and the version that is too low has few functions, and it is 1-2 years behind.

2. Buy a book, it should be good, and the book will not be verbose.

3. Be sure to be divided into layers to dig the mold, whether it is architecture, planning or interior, people who do not divide layers will be very troublesome later, and others will not be able to take over your diagram, so there must be the concept of layering, cancel your right-click shortcut menu, the specific method is very clear, after canceling the right-click is OK, combined with the left-handed shortcut key operation, so that it is faster than you only use the mouse to code the point to let the point go, 4, good at using shortcut keys after proficiency, do not have to remember all, commonly used to remember it, Shortcut keys will help you save time and effort in your drawing work.

5. Practice more, practice more judgment, and practice.

1.Some beginners do not achieve good results when learning AutoCAD, which is often due to low learning interest and low learning efficiency. Interest is the best teacher, and when learning AutoCAD, beginners should treat the process of learning and operation as learning a new video game.

2.The learning process should be done in a step-by-step manner. To learn and master AutoCAD, first of all, you must know how to draw by hand, and you must be very clear about the geometric knowledge of the drawing method used in the drawing process, only in this way can you further consider how to use AutoCAD to do and how to do it.

Practice has proved that AutoCAD is easier to learn and has better results due to strong drawing recognition and geometric drawing ability. Then understand the basic knowledge of computer drawing, such as relative Cartesian coordinates and relative polar coordinates, so that you can master the use of AutoCAD technology from shallow to deep, from simple to complex.

3.One of the great things about learning CAD tutorials is the ability to draw accurately. Precision drawing means that the dimensions are accurate and the drawings are in place.

Parallel lines must be parallel; The vertices of the corners formed by two lines must coincide. When the size is not drawn according to the standard, then the data needs to be modified when the dimension is marked, which not only affects the elegance of the figure, but also directly affects the authenticity of the figure, so it is necessary to be very careful in the process of drawing, step by step, to be accurate and error-free.

Buy a book to see, watch ** on the Internet, see how others operate, and be hungry and slippery, and practice more by yourself. CAD is originally a skilled job, and after a long time, it is natural to become familiar with the practice.

Select the cartographic object and kind.

If you don't know which dock to sail to, then any wind will not be a tailwind, CAD is divided into many types, such as engineering architectural design, mechanical design, electrical design, plumbing design and clothing design, etc., if you want to self.

Preparation before drafting.

As the old saying goes, don't fight unprepared battles, and make adequate preparations before starting mapping, such as setting layers, line types, annotation styles, target snapping, land hand circle unit format, drawing boundaries, etc.

For example, if you use layers reasonably and early, you can get twice the result with half the effort, draw a map at the beginning, set some basic layers in advance, and each layer has its own special purpose. In this way, you can combine many requirements even if you only draw a single graphic file.