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Many beginners who are just starting to learn CAD often ask how to use the Haochen CAD software to draw diagrams quickly Is it enough to memorize the CAD shortcut keys? In fact, in addition to mastering the common CAD shortcuts and commands, it is also necessary to acquire a wealth of practical CAD skills, as well as to study and copy CAD drawings of similar types on a regular basis. In this way, when dealing with complex CAD drawing projects, one can use CAD software as desired, thereby improving the efficiency of CAD design. Today, I’ll share 3 beginner-friendly CAD tips to boost your CAD drawing efficiency by 10 times! 1. The EDGEMODE variable: Generally, the default values of the variables in the HaoChen CAD software system are sufficient to meet our usual design requirements, but this is not necessarily the case for the EDGEMODE variable. The EDGEMODE variable controls whether the edges are extended with the trim and extend commands; the default value is 0, which means no extension. It can be changed to 1 to enable extension. Next, I will demonstrate the differences between the two using the tr command as an example. The effect of using the ex command (related to the EDGEMODE variable) is the same as mentioned above. Sometimes we find that the trim and extend commands don’t work, but in fact it’s a problem with the EDGEMODE variable – specifically, the extension mode for the boundaries has not been chosen appropriately. When the EDGEMODE variable is 0, the boundaries of the trim or extend commands will not be extended. In other words, before cropping or extending, it must intersect the boundary; otherwise, the cropping and extending commands will not be able to detect the boundary, and thus the commands cannot be executed properly. (The variable is 0) When the EDGEMODE variable is 1, the boundaries of the crop or extend commands are extended. As long as the object being manipulated can intersect the boundary in a straight line indefinitely, the crop and extend commands can be executed properly. (Variable is 1) When we execute the tr or ex command, the command line displays the extension status of the boundaries, allowing us to predict the boundary pattern in advance. By selecting the edge option, we can also set the value of the EDGEMODE variable. (Command-line display) 2. The view display range is very important. Although we can use the mouse wheel to zoom in and out of the view at will, the size of the view display range has a significant impact on the execution of many CAD commands; different display ranges can lead to completely different results when performing operations. Still taking the Clip and Extend commands as an example, let’s take a look at the demonstration below: (View range) Those familiar with the Clip and Extend commands know that after executing these commands, by pressing the spacebar twice in a row, all the elements in the image are considered as boundaries, allowing for quick clipping and extending. However, many users often find that the commands either fail to work or run incorrectly during use. This isn’t really a bug; rather, the software treats all elements in the current view as boundaries. If some elements are not visible in the current view, the CAD software will not consider them as boundaries for clipping extensions. During the demonstration, when we zoom in on the view to make the elements visible, the clipping command can be executed properly as well. In addition to cropping and extension, when dealing with relatively complex boundary filling patterns, sometimes even though the boundary is closed, CAD indicates that filling is not possible; this is also due to the boundary not being fully displayed in the view. 3. Everyone is familiar with the OOPS undo command (Ctrl+z), but what should we do if we accidentally delete a certain element and only realize it after having performed many operations? That's when OOPS can help you. OOPS can restore objects deleted by the previous ERASE command, and it can also be used after BLOCK or WBLOCK. Because these commands include an option to delete the selected objects after creating the block. However, we cannot use OOPS to restore objects on layers deleted with the PURGE command, nor can we restore parameters, actions, or grips in the block editor. (OOPS) Do you all understand the above three *tips for getting started with CAD? Do you feel like you’ve acquired a new skill, which will allow you to work more efficiently with the HaoChen CAD software in the future?