At work, how can we use CAD to quickly map? How can we improve work efficiency? The following is a small series of methods that I hope will help the CAD people who are using CAD.
First, familiar with the use of basic operating commands / shortcut icons in CAD
I believe that most people know that the basic commands and shortcut icons are the most familiar to everyone in CAD, and they should be able to master them. The details are not discussed in detail.
Second, the graphics pinch operation
Pinch, have you used it? When you click on the graph with the left mouse button, there will be many boxes on the graph. These are the grips. Some basic editing operations can be performed by controlling the grips. Such as: COPY, MOVE, change the basic operation of the layer where the graphics are located. And different graphics, as well as their special operations. Such as: the line has an extension operation.
Third, ACAD.PGP file modification
Everyone knows that the LINE command can be simplified to L when inputting COMMAND. Why is this? Because there is an encrypted file in AutoCAD, ACAD.PGP defines the shorthand for the LINE command. First find the file to open it. Find the prompt for "These examples include most frequently used commands." In the following lines, you can define the shorthand. Remember that the left column is the text of the shorthand command. You can modify it according to your needs. Of course, you are familiar with the English abbreviation å–½), its right column is the default command, please do not modify it at will. I believe this will increase your speed.
Fourth, a large number of use of the modify command
For CAD drawing staff, 60%--70% of a picture is modified and only 30%--40% is drawing. This is not difficult to understand. From the graphical composition, the graph has only two kinds of lines: straight lines and curved lines, and the curved lines are cut by a large number of circles, so one picture is finally composed of straight lines and circles. In this case, you only need to draw a circle or a line and determine the position, then perform a series of operations such as: OFFSET, TRIM, FILLET, ARRAY, CHAMFER, etc. to achieve the graphics.
For example, a bearing drawing requires only two lines perpendicular to each other, and then a series of operations such as OFFSET, FILLET, and CHAMFER can accurately complete the drawing of the bearing.
Fifth, build tiles to simplify drawing work
Tiles are the core of CAD operations, and many programmers and drafters have built a variety of tiles. Because their work has brought us simplicity, we can use these tiles like bricks. For example, various specifications of gears and bearings are established in engineering drawings; some doors, windows, stairs, steps, etc. are built in the architectural drawing to make it easy to call when drawing.
The flexible blocks in these tiles are the easiest to call, and it's actually a program written in Auto LISP/Visual LISP.
1. Create a DWG file of the pattern prototype and save it (under the WBLOCK command, create the base point of the tile for later recall)
2. Add a tile from INSERTION to the graphic that requires the tile.
Through these two parts, you can build and use the tiles. The use of tiles will further increase the speed of drawing.
1. [Solution when CTrl+N is invalid] It is well known that CTRL+N is a new command, but sometimes CTRL+N appears in the selection panel. At this time, you only need to adjust the setting operation in the OP option: OP (option)---- -- System ------- There is a start on the right side (A shows the startup dialog box B does not display the startup dialog box) Select A to create a new command is valid, but the reverse is invalid 2. [Ctrl key invalid solution] Sometimes we Will encounter such problems as CTRL + C (copy), CTRL + V (paste) CTRL + A (select all) and a series of commands related to the CTRL button will be invalid, then you only need to adjust to the OP option
Operation: OP (option)-----user system configuration ------WINDOWS standard accelerator key (hook) WINDOWS standard accelerator key is hooked, the command related to CTRL key is valid, otherwise it is malfunctioning 3. Solution when the fill is invalid]
Sometimes when filling, it will not be filled out. In addition to the system variables need to be considered, you need to check the OP option in the OP option--------- display application entity fill (on the Hook) 4. [Solution when the selection is invalid] The correct setting of AD should be that multiple objects can be selected continuously. However, sometimes the selection of objects will be invalid, and only the last selected object can be selected. Solve entry OP (option) --------- select ----------- use SHIFT key to add to the selection set (marked)
Use the SHIFT key to add to the selection set "Tick", then the selection is valid and vice versa. 5[CAD command three-key restore] If the system variables in CAD are inadvertently changed or some parameters are intentionally adjusted, do not need to reinstall, and do not need to change one by one: OP option ---- -Configuration-----Reset to restore but after recovery, some options need some adjustments, such as the size of the cross cursor, etc. ~AutoCAD 2000 shortcut command use AutoCAD is the preferred design software for engineering designers all over the world, easy Easy to learn and accurate are two important reasons for the success of AutoCAD. AutoCAD provides a lot of commands, and the most commonly used commands for drawing are only 20% of them. When using the keyboard to enter commands, some common commands are long, such as BHATCH (filled), EXPLODE (decomposed), the number of keystrokes during input is too many, affecting the drawing speed. Although AutoCAD provides a complete menu and toolbar input method, to improve the drawing speed, only the quick command input method provided by Auto CAD is mastered.
Six, CAD shortcut commands
The so-called shortcut command is a shortcut for AutoCAD to improve the drawing speed. It replaces the commonly used commands with one or several simple letters, so that we don't have to memorize many long commands, and we don't have to execute a command. Find hidden on the menus and toolbars. All defined shortcut commands are saved in the ACAD.PGP file in the SUPPORT subdirectory of the AutoCAD installation directory. We can define the shortcut commands that we use by modifying the contents of the file.
When we create or open an AutoCAD drawing file each time, CAD itself will automatically search for the SUPPORT path in the installation directory, find and read the ACAD.PGP file. When AutoCAD is running, we can use the command line to use the shortcut commands defined in the ACAD.PGP file to complete an operation. For example, if we want to draw a line, just enter the letter "L" in the command line. .
1. The naming law of shortcut commands
1. The shortcut command is usually the first or first two letters of the English word of the command, and the first three letters. For example, the shortcut command for Line is "L"; the shortcut command for copy (COpy) is "CO"; the shortcut command for line scale (LTScale) is "LTS".
In the process of using, try to use the first letter of the command, not use the first two letters, up to the first three letters, that is, AutoCAD shortcut commands generally do not exceed three letters, if a command is used before If the three letters are not working, you can only enter the complete command.
2. Another type of shortcut command is usually composed of "Ctrl key + one letter" or defined by function keys F1~F8. For example, Ctrl key + "N", Ctrl key + "O", Ctrl key + "S", Ctrl key + "P" respectively means to create, open, save, print files; F3 means "object capture".
3. If the first letter of any command is the same, then the commonly used command takes the first letter, and other commands can be represented by the first two or three letters. For example, "R" means Redraw, "RA" means Redrawall; for example, "L" means Line, "LT" means LineType, and "LTS" means LTScale.
4, individual exceptions need us to remember, such as "modify text" (DDEDIT) is not "DD", but "ED"; and "AA" means Area, "T" means Mtext, "X" means Explore.
2. Definition of shortcut commands
It has been mentioned comprehensively that all the shortcut commands defined by AutoCAD are saved in the ACAD.PGP file. ACAD.PGP is a plain text file that can be edited by the user using an ASCII text editor (such as EDIT under DOS) or directly using Notepad in the WINDOWS attachment. Users can add some shortcuts to Auto CAD commands to the file.
Usually, shortcut commands use one or two easy-to-remember letters and use it instead of the full name of the command. The shortcut command definition format is as follows: Shortcut command name, * Command full name such as: CO, * COPY After typing the shortcut command, type a comma and the full name of the command replaced by the shortcut command. AutoCAD commands must be prefixed with an asterisk.
Add two points:
First, the understanding of the graphics, we must analyze the primary and secondary relationship of the graphics, then draw, first arrange the order of the drawing, then draw, sharpen the knife without cutting the firewood!
Second, pay more attention to the various uses of each command, learn and use, before drawing, first think of a good method, draw and then divergent thinking to see if there are other methods, the general graphics can be achieved through a variety of methods, use a variety of The method, maybe one of the fastest in the future drawing.
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