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When using the Haochen CAD drawing software to create drawings, the measured values are automatically included in the CAD dimension annotations; sometimes it is necessary to add tolerance/diameter symbols to these measured values. However, some beginners who are just starting to learn CAD might not be clear about exactly how to proceed. Next, the editor will share with you a beginner’s CAD tutorial on how to add tolerance/diameter symbols in the HaoChen CAD software! First, open the HaoChen CAD software, then enter the shortcut command ED in the command line and press Enter to confirm (or simply double-click on the dimension text), and the multi-line text editor will appear. Then, use the shortcut %%P to enter the tolerance symbol (±) in front of the value. As shown in the figure below: when marking the diameter of a circle in other views, linear dimensions are used, but to indicate that it is a circle, the diameter symbol is usually added manually in front. The shortcut key to enter the diameter symbol (Φ) before a number is %%C. As shown in the figure below: It should be noted that if the CAD annotation font used does not support the diameter symbol, HaoChen CAD will automatically select an appropriate font to use as a substitute when entering the diameter symbol. The appearance of this symbol may differ from that of regular numbers; in some older versions, a question mark might appear instead of the diameter symbol. Therefore, everyone should pay close attention to the font being used when adding CAD annotations. After reading this CAD beginner’s tutorial, have you learned how to add tolerance/diameter symbols in the HaoChen CAD software? To get more CAD tutorials, please click to follow~