Many beginners in construction drawing are often puzzled: why can others draw construction drawings so quickly and well, while their own drawing efficiency doesn't improve even after working overtime until midnight every day? Low drawing efficiency can be caused by the following reasons:
1. Inconsistent cartographic standards
Designers' drafting habits are summarized during their learning and work, mostly based on past experience, without a scientific and rational process. For a junior draftsman, this is even more of a process that requires self-exploration, failing, summarizing, failing again, and summarizing again, wasting a lot of time and being inefficient.
2. Lack of proficiency in software skills
When learning to draw construction drawings, most designers rely on collecting and imitating the works of masters, establishing standardized drafting models, and applying flexible drawing techniques. This can greatly reduce repetitive work and complete drafting quickly and efficiently. Therefore, it is essential to unify drafting standards.
3. I don't know how to use the standard drawing set.
I can't understand or look up the standard drawings; they lack focus.
After all, drafting habits and skills aren't developed overnight; everyone needs to continue working hard and honing their skills. Below, I'll share some carefully compiled practical CAD tips! Remember to share if you like them!
1. [Solution when CTrl+N is ineffective]
CTRL+N is the new command, but sometimes CTRL+N will bring up a selection panel. In this case, you just need to adjust the settings in the OP options.
Operation: OP (Options) ------- System ------- On the right, there is a Startup option (A shows the Startup dialog box, B does not show the Startup dialog box). Selecting A will enable the new command, otherwise it will be invalid.
2. [Solution for Ctrl key not working]
Sometimes we encounter problems such as CTRL+C (copy), CTRL+V (paste), CTRL+A (select all), and other commands related to the CTRL key becoming ineffective. In such cases, you only need to adjust the settings in the OP options.
Operation: OP (Options) ----- User System Configuration ----- Windows Standard Speed-Up Keys (check the box). When Standard Speed-Up Keys is checked, commands related to the CTRL key will be effective; otherwise, they will not work.
3. [Solutions when fill is invalid]
Sometimes the populate may fail to fill in the data. In addition to considering system variables, you should also check the OP options.
Operation: OP---------Display-----------Apply Entity Fill (check the box)
4. [Solutions when adding an option is invalid]
The correct setting should allow you to select multiple objects consecutively, but sometimes, consecutive selection fails, and you can only select the last selected object. In this case, you can solve the problem as follows.
Instructions: Go to OP (Options) -------- Select ----------- Use the SHIFT key to add to the selection set (uncheck the box). After unchecking the box while using the SHIFT key to add to the selection set, the selection will be effective.
Conversely, adding options is invalid.
Command: PICKADD Value: 0/1
5. [CAD Command Three-Key Restore]
What if system variables in CAD are accidentally changed, or some parameters are intentionally adjusted? In this case, there is no need to reinstall or change them one by one.
Operation: OP Options ---- Configuration ---- Reset. This will restore the settings, but some options may require adjustment after restoration, such as the size of the crosshair cursor.
6. [What should I do if the middle mouse button isn't working properly?]
Normally, the scroll wheel in CAD can be used to zoom in and out, as well as pan (by holding it down). However, sometimes when you hold down the scroll wheel, instead of panning, a new menu appears, which is annoying. In this case, you only need to adjust the system variable mbuttonpan.
Operation: Set the initial value of mbuttonpan to 1. Supports actions defined in the menu (.mnu) file; supports panning operations when the button or wheel is pressed and dragged.
[Solution to missing model and layout in command line]
Operation: op----Options-----Display---------Show Layout and Model tabs (just check the box)
7. [CAD Skills]
As we all know, there are two keys to confirm: "Enter" and "Space".
But for now, let's use the right mouse button instead.
Operation: OP Options ----- User System Configuration ----- Use shortcut menu in the drawing area (check the box) Customize right-click
Click in ------ check all the boxes for "Repeat the previous command".
Try right-clicking to see if it now has a confirmed attack effect.
First recommendation: I hope everyone can get into the habit of right-clicking and confirming.
Secondly: the space bar.
Annoying: Never use the Enter key to confirm.
8. [What if the circles in the diagram aren't round anymore?]
Anyone who frequently works with graphics will have experienced this: the circles they draw no longer appear perfectly round. Of course, those who have studied sketching know that a circle is composed of many broken lines, but I won't go into detail here; one command will suffice.
Operation: RE~
9. [Display scroll bar in graphics window]
Some people might still be using mice without scroll wheels, in which case scroll bars might still be somewhat useful.
Operation: op----display------Show scroll bar in the graphics window
10. [Save format]
Why save it in 2000 format?
Because the CAD version is only backward compatible, it can be opened using versions 2002, 2004, and 2006, making it convenient to operate.
Operation: OP ---- Open and Save ---- Save As 2000 Format
11. [How to save the print list]
But before that, you need to create your own example table.
Don't tell me you don't know how to build it!
Operation: Ops Options ----- Print ----- Add to Print List
12. [What if the path is not fully displayed in the title bar?] Steps: Ops Options -------- Open and Save -------- Show full path in title bar (check the box).
13. [Is OSNAP useful?] A: It's very useful. Especially when drawing mechanical drawings requiring high precision, OSNAP is the best tool for accurate point determination. We place great importance on it, and its functionality has been greatly improved with each version upgrade. Avoid using cursor lines to directly determine points; such points will never be very accurate.
14. [Why are the drawn section lines/dimensional lines not continuous?] A: Section lines and dimensions drawn in AutoCAD can have linetype attributes. If the current linetype is not continuous, then the drawn section lines and dimensions will not be continuous lines.
15. [How to reduce file size]
A: After the drawing is completed, execute the PURGE command to remove redundant data, such as useless blocks, layers without entities, unused linetypes, fonts, and size styles. This can effectively reduce the file size. A thorough cleanup usually requires two to three PURGE commands.
`-purge`, with a minus sign in front, will clean more thoroughly. Haha, I haven't tried it yet, you should try it first.
★Supplement:
Method 2: Use the WBLOCK command.
Use the WBLOCK command to generate new drawing files from the graphics to be transferred, in block format. Use these newly generated files for transfer or archiving. This is currently the most effective method I've found for reducing file size. A simplified example is shown below:
Command: wblock (Enter the file name and file location in the pop-up dialog box. Since it is very simple, the dialog box image is omitted here.)
Defined name: (Press Enter)
Given a base point: (choose any point)
Select objects: (Press Enter after selecting)
This will generate a new drawing file in your specified folder. Comparing the results of simplifying DWG files using two methods, the difference in file size after simplification is almost within 5KB!
16. [How to restore an automatically saved image]
A: AutoCAD automatically saves drawings to the AUTO.SV$ or AUTO?.SV$ file. Locate the file, rename it to "drawing file", and you can open it in AutoCAD.
This file is usually stored in the Windows temporary directory, such as C:\Windows\TEMP.
Replenish:
By default, *.sv$ files are stored in the following locations: Win9x: typically in the Windows temporary directory, such as C:\WINDOWS\TEMP; WinNT/2000/XP:
Start Menu -> Run, type %temp%, (%tmp% may also work), and click OK.
17. Why can't Chinese characters be displayed?
A: The reason may be:
1. The corresponding font does not use Chinese fonts, such as HZTXT.SHX, etc.;
There are no Chinese character font files in the current system; the required font files should be copied to the AutoCAD font directory (usually ...FONTS).
For certain symbols, such as Greek letters, the corresponding font file must also be used; otherwise, they will be displayed as "?".
If you can't find the incorrect font, or if your eyesight isn't great, or you're a bit impatient, then simply reset the font and size, retype it, and then use the small brush tool to click on the newly typed font to brush away the incorrect font.
Note: (The system has some built-in fonts, but sometimes due to incorrect operation or other external factors, Chinese fonts may be lost, which can cause you great inconvenience. In this case, you can copy some fonts from someone else's computer.)
18. [Why can't I change the height of the text I've entered?]
A: When the height value of the font used is not 0, the DTEXT command will not prompt for a height when writing text, so the height of the written text will remain unchanged, including dimension annotations made using this font.
19. [Why can some graphics be displayed but not printed?]
A: This happens if the drawing is on layers automatically generated by AutoCAD (DEFPOINTS, ASHADE, etc.). You should avoid drawing on these layers.
20. [What should I do if the DWG file is corrupted?]
A: File --- Drawing Utilities --- Repair. Select the file you want to repair.
This method is 50% effective.
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