CAD learning skills, what are the introductory learning methods for CAD?

Hello! Friend.

It is recommended to start learning CAD 2007 version, which can be said to be a turning point for CAD. Both in terms of functionality and its interface, it is very classic, and it is good to get started. I used to learn very quickly; Teach you a trick:

Watch the tutorial first to have an overall understanding of it, and it is also very quick to learn, and you will learn a lot by spending a day or two watching it. So to speak. Then watch the text tutorial to do a systematic study.

This is for those who want to learn. If it's just an ordinary application, it's okay to see**. You search for "Wen Haorui's cad experience", he has this tutorial there, you can take a look.

The learning skills of CAD are mainly as follows:

2) Practice more. CAD masters must have a lot of practical experience, if there is not a lot of practice, just blindly watch the tutorial, you just see how others do, you will never do it yourself, only more practice can improve yourself, summarize experience, find problems.

3) Communicate more. Compare and communicate with the CAD masters on your side, such as making a product model or plane drawing, what methods and skills the other party uses. Although it is said that all roads lead to Rome, we will take the nearest one as soon as possible.

That is, the fastest one.

4) Use multiple shortcut keys. Drawing CAD must remember shortcut keys, there is no drawing master who does not use shortcut keys, if not, the speed is very slow, in terms of drawing, the speed can not keep up, the efficiency can not keep up. So use shortcuts more.

That's basically it, I'm from here. Now I am also using CAD to draw, but CAD has many functions, and the aspects used are two-dimensional, and three-dimensional ones are basically not used.

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 an angle of 30 degrees in the horizontal direction, then you can choose the line command, and then choose any point, enter Lao Lu into "@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 file format drawings such as DWG and DXF, and can also serve the function of balance.

It's not difficult to draw some 2D graphics in CAD, as long as you master the basic commands and some shortcut keys. Next, I will tell you the complete set of introductory tutorials for CAD drawing, let's learn together.

CAD Drawing Beginner Introductory Course 1:

In the process of AutoCAD physical exercises, although there can be a variety of calculations to achieve the same purpose, if the command is selected properly, the operation steps will be significantly reduced, and the drawing efficiency will be improved. Here is just one typical example.

Generate a line or segment.

1.In the beginner's introduction to CAD drawing, the line, xline, ray, pline, and mline commands can all be used to generate straight lines or line segments, but only the line command is the most frequent and flexible.

2.In order to ensure the correspondence between the three views of the object, the length is right, the width is equal, and the height is flush, the xline and ray commands should be used to draw several auxiliary lines, and then trim the excess parts should be cut off.

3.If you want to quickly generate a closed fill boundary, or if you want to construct a region, you should use the pline command. Segments generated with pline can be performed using the pedit command.

4.If you want to generate multiple line segments parallel to each other at a time, and each line segment may use different colors and line types, you can select the mline command.

The above CAD tutorials are some suggestions for beginners in CAD drawing, but the most important thing to learn from AutoCAD software is to practice more on the computer and summarize more, and check more relevant books.

CAD Drawing Beginner Introductory Course II:

Mapping tips.

1.Drawing Steps: Set View Frames Set Units and Precision Create Several Layers Style Objects Start drawing.

2.Drawings always use a 1:1 scale. To change the size of the drawing, you can set different print scales in the paper space when printing.

3.Set different layers, colors, and lineweights for different types of primitive objects, and the color, linetype, and lineweight of primitive pairs should be layer-controlled.

4.When you need accurate drawing, you can use the raster snapping feature and set the raster snap spacing to the appropriate value.

5.Don't draw the frame and the figure in the same picture, insert the frame in the layout as a block, and then print the picture.

6.For named objects, such as views, layers, blocks, linetypes, text styles, plot styles, etc., the naming should not only be concise, but also follow certain rules to make them easier to find and use.

7.Set common settings, such as layers, dimension styles, text styles, raster snaps, and more, in a drawing template file (i.e., save as *.).dwf), later when you draw a new drawing, you can create a new drawing wizard and click "Use Template" to open it and start drawing.

1. First of all, you need to be able to look at the picture.

If 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 geometric stool Zheng Wu Zhijube or, it is recommended to choose a professional CAD book to learn to read the hail drawing.

2. Left-handed keyboard, right-handed mouse, and shortcut keys are proficient in use.

The use of shortcut keys is definitely a skill that we need to learn when we get started with CAD, and the use of shortcut keys can also help you improve your CAD drawing skills, and it is best to combine left-handed shortcuts and right-handed mouse to operate.

3. Think more and summarize more.

Think more and summarize more, this is the general law of learning any thing, because everyone learns differently, so if you want to learn CAD drawing, you must be based on your own situation, constantly summarize, continue to think, how to learn CAD, how to learn CAD, I hope you can find a method that suits you.

4. Good drawing habits are developed early.

The habit of drawing here must be cultivated as early as possible, especially learning to save documents anytime and anywhere, not only to preserve the fruits of one's own labor, but also to be able to not affect the efficiency of one's work, this good habit must be developed as soon as possible.

Self-learning CAD drawing, first of all, must have a certain foundation, in the learning process to be gradual, and to be able to apply what you have learned, always combine with practical application when learning CAD commands, and finally force yourself to do a few comprehensive examples in order to make perfect. The details are as follows:

1. The foundation is very important, practice has proved that the "manual drawing board" drawing ability is the basis of computer drawing ability, learning CAD, requires a certain knowledge and ability of drawing geometry, needs a certain ability to read the map, 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.

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

3. Apply what you have learned, always combine it with practical application when learning CAD commands, do not spend the main energy on learning each command in isolation, and apply the principle of learning throughout the learning process, so that you have a deep and vivid understanding of the drawing command, which is conducive to cultivating your ability to apply CAD to complete the drawing independently.

4. Practice makes perfect, and you should force yourself to do a few comprehensive examples and draw graphics in detail, so that you can grasp the entire drawing process from a global perspective.

5. When making a drawing, you need to pay attention to the setting, the drawing area boundary, after using the limits command to set, and then use the all option in the zoom command to re-organize the drawing area; When drawing a dotted line, you can check whether the line type ratio is appropriate.

If it doesn't fit and it will look like a solid line, you can change its global scale factor to the appropriate value by the Linetype Manager; You also need to pay attention to the size of the overall scale factor setting for the dimension.