Where should I start with CAD? What are some of the shortcuts that work for me right now?

The best learning for beginners is to start with the graphics exercises, so that there is no need to learn the functions of the icons over and over again.

From the first one, follow the tutorial to draw, and you can enter the independent drawing stage in about 3 days to a week.

You can take a look at the experience, some introductory skills, etc., in fact, the main function used is drawing + modification + annotation, mastering these, the basic two-dimensional drawing should not be too much of a problem: insert links.

Beginners in CAD drawing can start with the basic knowledge of distinguishing the design object and the familiarity of the software, and then master the basic operation and design process

1. Basic knowledge of distinguishing the object of design and familiarity with software.

If you want to make a good drawing with CAD, you must first understand what kind of drawing you want to make, and if you even know what you want to do, you will naturally not be able to continue learning. In CAD, if we understand the type of drawing we want to make, it can also bring us a lot of convenience, because there are many kinds of categories to choose from, such as electrical design, clothing design, etc.

Then you need to familiarize yourself with the interface and the functions in the software, and in each software there will be different shortcuts to correspond to some related functions. Memorization function function memory shortcuts, can bring us a lot of convenience, but also let us know what we can do with this software.

2. Master the basic operation and design process.

Most novices are dazzled when looking at the design created by CAD because it is so complicated. In fact, in the software, this design is not responsible at all, because it subdivides the design into many layers, and each layer is a pattern or line or something.

Before learning CAD, it is necessary to understand what these layers need to do, what functions are on the layers, what effects they will have, etc., which is convenient for us to improve and refine the technology in the future.

3. The foundation is learning outside the software.

There is also a need to know something outside of software. For example, the specifications of fonts, formats, lines and other contents in different industries, only when you know these can you use CAD to produce drawings that meet the requirements.

Drawing principles to be followed in CAD drawing:

1. Drawing steps: set the image frame, set the unit and precision, establish several layers, set the object style, and start drawing.

2. Always use a 1:1 ratio for drawing. To change the size of the drawing, you can set a different plot scale when plotting than in paper space.

3. Set different layers, colors and line weights for different types of primitive objects, and the color, line type and line width of primitive pairs should be controlled by layers.

4. When you need to draw accurately, you can use the raster snapping function and set the raster snapping spacing to an appropriate value.

First of all, we must know how to draw by hand, and we must be very clear about the geometric knowledge of the drawing method used in the drawing process, so that we can further consider how to do it with CAD and how to do it; Then understand the basic knowledge of computer drawing, such as relative Cartesian coordinates and relative polar coordinates, so that you can master the practical technology of CAD from shallow to deep, from simple to complex.

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 marking the size, 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.

The purpose of using computer graphics is to improve the speed and efficiency of drawing, and the fastest way to do it is to use shortcut keys. Therefore, when drawing graphics with CAD, we should try to remember and use shortcut keys, and work with both left and right hands, so as to improve the speed of drawing graphics. When you want to execute a command in the drawing, you can use the left hand to directly enter the shortcut key of the command, and then use the right hand to click the right mouse button, which is the same as clicking the command icon with the left mouse button.

The introduction to CAD drawing starts with the following points: the way to select objects, relative coordinates, layer modes, modification of graphic objects, and drafting tools. The details are as follows:

1. Select the object method.

There are two kinds, one is from the top left to the bottom right, the other is from the bottom right to the top left, the results of the two ways are different, the first is to select the box that is pulled out, the object that is completely enclosed; Second, all objects that intersect with the imaginary frame, including the objects that surround them, can be selected as long as they touch them.

2. Relative coordinates.

1. First of all, you need to choose a point as the initial position, and then move the mouse in one direction to draw the ray. If you want to draw a square with an edge length of 200 mm, you need to select the command, take any point, type "@200,200", and press enter to get a square.

2. "@就代表了相对坐标, if you want to draw a 100 mm long line with a horizontal angle of 30 degrees, then you can choose the line command, then select any point, enter "@100<30", and press enter.

3. Layer mode.

The layers of the drawings are like the layers of transparent film on the outside of the cover of a book, and in order to better manage all the objects, each sheet has a different category of objects drawn on it. In order to avoid complex graphics in the drawing process, the wrong choice, you can close the ones that you don't need to use for the time being, and you can also lock, freeze, etc., people who have played PS should know it.

4. Modification of graphic objects.

To be honest, you don't need to master too many drawing commands to learn CAD drawing, but you can use modification commands a lot. Commonly used are:

1. Delete: shortcut key: the most convenient in universal operation.

2. Copy: shortcut: cp. You can copy one or more objects to a specified location, or you can copy an object consecutively.

3. Move: shortcut: M. Movement changes the position of the object.

4. Trim: shortcut: TR. Unwanted parts can be cut by a specified boundary.

5. Extension: shortcut: EX. Used to extend the extended object exactly to the target boundary.

5. Mapping tools.

If you are still a CAD beginner, it is recommended to use the standard version, because it is relatively simple to operate, and it is most suitable for novices. It also supports opening drawings in file formats such as DWG and DXF, and can also perform functions.

Beginners in CAD drawing should choose the right drawing tools, determine their own learning style, master the basic knowledge of CAD, learn to read drawings, etc.

1. Preparation of appropriate drawing toolsComplex drawing operation, in the selection of tools must be simple, convenient, simple and simple, the professional version of the fast cad, it is very good, compatible with all the functions of AutoCAD, novices can quickly get started with drawing, all kinds of villas, landscapes, machinery are used.

2. Determine your own learning style3. Master the basic knowledge of CAD(1) Familiarize yourself with a few common commands.

2) Start with simple straight lines, copy and other commands.

3) Gradually start with slightly difficult patterns such as flowers.

4) Copy a set of construction drawings.

4. Learn to read picturesIf you want to be proficient in CAD drawing design, you must know how to understand CAD drawings, you need to know the annotation and size of a set of drawing files, and of course, you also need a certain amount of geometric knowledge.

Beginners in CAD drawing should start with its software features.

If you want to learn CAD well, it is not difficult, the most important thing is whether you have the determination, you might as well use 60 seconds to test it first.

Click to test whether I am suitable for learning design.

With the guidance of science and technology, when talking about CAD, of course, it is closely related to dedicated designers. CAD enthusiasts who are engaged in design and development work need to learn a lot of relevant knowledge when they first enter the door of CAD. There are too many design gimmicks today, and only continuous learning can make yourself stand out from the crowd and earn a high salary.

1. Understand the fundamental knowledge of computer graphics.

The development of CAD design is becoming more and more professional and technological. CAD drawing basic design ability is the foundation of computer drawing ability, learning CAD drawing, need to master a certain amount of drawing geometry knowledge and ability, the need for a certain drawing skills, especially in the graphic structure, under ordinary circumstances, high-level draftsmen are easier to learn, will not feel very difficult! It is proposed that the whole learning process for beginners should be in a step-by-step manner, from shallow to deep, with the primary purpose of understanding the fundamental knowledge of computer graphics.

2. Recognize the function of CAD drawing software that is suitable for me.

Although there is a lot of software, it is not a change of medicine. Large-part CAD drawing software is composed of menu bar, toolbar, property bar, drawing area, and command line. In fact, most of the functions in CAD are basically the same steps.

For example: activate the function, select the object, perform the operation, in addition, every time a function is called, the command line below the software will present the relevant prompts, according to the command line prompts, according to the drawing steps to complete the drawing work, then, CAD drawing will become easier.

Three: Skillful control and application of CAD common shortcut keys.

Skillful control of CAD drawing shortcuts can not only quickly get started with CAD and improve your drawing efficiency, but also make you appear more professional in the eyes of customers. Overnight, it will be more and more helpful for you in CAD drawing.

F1: Get help.

f2: Completes the switch between the drawing window and the text window.

f3: Controls whether the object can be snapped automatically.

F4: Digitizer control.

F5: Isometric plane switching.

f6: Controls how coordinates are displayed on the status line.

f7: Grid Appearance Control.

f8: Orthogonal form control.

f9: Grid snap form control.

F10: Polar axis form control.

f11: Object tracking form control.

Four. It's easy to learn and use it now.

Regardless of the aspect of learning, theory is often more effective than listening, speaking, memorizing, and memorizing. Control multi-faceted drawing techniques, case separation tracing theory. You should force yourself to do some case exercises, draw graphics meticulously, learn to stand in the perspective of a professional CAD designer, be clear about your drawing thoughts, and complete the entire drawing process.

Five: Persistence! Hang on! Hang on! (Important things are said three times).

It is often said that it is actually very simple for a person to learn something, and the reason may be due to curiosity, jealousy, interest, etc., but there are often very few who can really stick to it. The mentality of fishing for three days and drying nets for two days must be a trend that the good times will not last long. As long as you work hard and persist is the fuse of victory.

No matter what kind of tutorial you learn, the mode of three days of fishing and two days of drying nets is definitely not possible, no one can reach the sky in one step, only unremitting efforts can achieve greater success. Naturally, there is no need to say more about copying maniac practice. It is very important to take some drawings and copy them, so don't rush them.

If you want to learn more solidly, I recommend starting with icon cognition and exercises.

However, the predecessor of the exercise, it is still necessary to have a certain understanding of the multi-icon function, after all, you need to know which icon or shortcut key is the straight line to use.

CAD will be updated every year, so it is best to choose the latest version to learn, CAD has common shortcut keys, can be directly searched on the Internet and copied in the book, the use of more convenient operation, simpler.

The most basic is to use various command shortcuts to manipulate and then start drawing simple shapes.

What is the fastest way to learn CAD? What are the key points?

The purpose of grinding chain 1, computer drawing and hand drawing is the same, which is to express the designer's design ideas. Therefore, first of all, we must understand and master the specifications of cartography, which is the most basic.

2. Selectively learn the functions of AutoCAD. As a general design software, AutoCAD has comprehensive drawing functions, but mechanical drawing needs to be used only a part of it, so you should choose the commonly used functions of machinery to learn, and do not spend energy and time on some unused functions.

3. Be proficient in the use of these basic functions and commands selected. No matter how simple or complex the mechanical graphics are, the basic commands used are always so many basic commands, so you must be very proficient in the basic commands, so that when you draw a picture, you can quickly judge when you should use what commands.

4. Do more tracing exercises. Find some drawings drawn by others, convert them into jpg format, insert them into AutoCAD, and then use various basic commands to completely trace the drawings, which can cultivate the practitioner's overall view and quickly improve the drawing proficiency. Generally, after drawing 3 complete drawings, the proficiency of drawing will be significantly improved.