What exactly does CAD do, and how can I learn it well?

CAD graphic design.

It is useless to just draw CAD, CAD is a design software, widely used in machinery, architecture, decoration, clothing and other industries, if you do not have knowledge of these aspects, no matter how fast you CAD draw, you can only follow other people's sample drawings, and you can't eat outside.

CAD is very simple, most of them are used to draw floor plans, and all floor plans are composed of straight lines and curves. So as long as you can draw straight lines and curves, you can use the specific How to Draw as long as you have a little geometric knowledge, and there are some other small functions to know how to use.

It is an engineering application software used for electronic drawing and design aid.

CAD is a drawing software, it can draw complex engineering drawings, not simple lines or icons, its drawing function is very powerful, almost omnipotent, so, if you draw mechanical drawings, sail leaks, architectural drawings, electrical drawings, etc., CAD is the best choice.

The role of CAD is mainly to make accurate drawings.

One is the reference of the plane, because in many garden landscape renderings, it is impossible to draw the accurate terrain with 3D, and the general practice is to import the CAD drawn drawings into 3DMax as a reference;

The second is to draw complex graphics, in the process of making renderings, the limb roll encounters more complex, or requires accurate graphics that are difficult to complete in 3D, it is necessary to use CAD to help;

The third is the use of some model starvation libraries.

Software features: 1) It has a perfect graphic drawing function.

2) There are powerful graphics features.

3) Secondary development or user customization can be carried out in a variety of ways.

4) It can convert a variety of graphic formats and has strong data exchange capabilities.

5) Support a variety of hardware devices.

6) Support a variety of operating platforms.

7) It is versatile and easy to use.

First, what is CAD and what can it do.

Basic functions. CAD is first and foremost a visual drawing software, and many commands and operations can be implemented in a variety of ways such as menu options and tool buttons. And it has a wealth of drawing and drawing auxiliary functions, such as solid drawing, keys, object snaps, annotations, bird's eye view control, etc., its toolbar, menu design, dialog box, graphic opening preview, information exchange, text, image processing and graphic output preview bring great convenience to the user's drawing.

Secondly, it is not only more mature in 2D drawing processing, but also more complete in 3D functions, which can be easily modeled and rendered.

Basic functions of 2D CAD.

Planar drawing: You can create basic graphic objects such as lines, circles, ellipses, toroidal polygons (regular polygons), splines, etc., in a variety of ways.

Drawing aids: Drawing aids such as orthographic, object snap, polar tracking, snap tracking, etc. are provided. The orthographic feature makes it easy to draw horizontal, vertical straight lines, object snaps help pick up special points on geometric objects, and the trace feature makes it easier to draw diagonal lines and locate points in different directions.

Graphics: CAD has powerful features to move, copy, rotate, pattern, stretch, extend, trim, scale objects, and more.

Dimensioning: You can create a variety of types of dimensions, and the appearance of dimensioning can be set by yourself.

Write text: You can easily write text anywhere and in any direction of the graphic, and you can set attributes such as text font, tilt angle and width zoom.

Layer management function: Graphic objects are located on a certain layer, and you can set the object color, line type, line width and other characteristics.

3D Drawing: 3D solid and surface models can be created, and the solid itself can be performed.

Network functionality: Drawings can be published on the network or AutoCAD resources can be accessed over the network.

Data exchange: provides a variety of graphics and image data exchange formats and corresponding commands.

Second, what can you do? Why and how to learn.

The earliest applications of CAD were in large companies in the automotive, aerospace and electronics industries. As computers become cheaper, so do the applications.

CAD technology has been widely used in machinery, electronics, aerospace, chemical, construction and other industries. Design methods such as parallel design, collaborative design, intelligent design, virtual design, agile design, and full life cycle design represent the development direction of modern product design patterns.

CAD is used in a wide range of applications! It is used for machinery, architecture, clothing, interior, garden, plane and other designs.

There are many ways to do this. I would like to introduce you to two types.

One: Go to a training class. Well, the start will be quick.

Two: Buy a CAD exercise book, follow the book step by step, draw a few more times and get started.

CAD2004 is the best to learn the words. Now most of the training courses, the school is using the 2004 version, because the version after the 04 version is based on the 04 version of the more functions, as long as the 04 version of the will, other versions will also, a little bit of it.

CAD is a drawing software, which is used more by design institutes, which you can understand as "a piece of paper and a pen".

As for what you can draw, it depends on your level.

It's impossible to just learn and think about it, and that can only be called getting started. If you are not engaged in the application industry, you will always stay in use, not in application.

Let's take an example: (take chemical design as an example).

To draw a chemical process flow chart, such as a PID diagram, you need to understand chemical equipment, chemical instruments, chemical pipelines, chemical appliances, and a lot of GBT standards and specifications, and understand the petrochemical design code, fine chemical design code, and building design code. These will be, then you have to slowly accumulate some chemical design knowledge, such as what is "two key points, one major", DCS, how to design and evaluate SIS, these understand, you can start drawing.

No one will draw it well and let you follow it, so what's the point?

You get the idea? Learning well is a systematic project, not just drawing!

There are various professional CAD, (computer-aided drafting), training + exercises.

A lot of design learning materials to share, search the nine-layer network.