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In everyday product design, holes play an important role. In different application scenarios, we use holes of various types and with different parameters. These holes serve some functions in terms of connection and positioning, others have a decorative role, and yet others have a significant impact on the stress structure of the product. In short, holes are far from as simple as you might think! How to create and label holes quickly and efficiently, while keeping the CAD drawings neat and organized, has always been a concern for many people. Next, the editor will provide you with a detailed introduction to the outstanding features of the HaoChen 3D software in terms of hole creation and annotation. I. Comprehensive range of types: HaoChen 3D enables the creation of various types of holes, such as simple holes, threaded holes, counterbored holes, recessed holes, and tapered holes. It also allows for the use of different standards, including those from China, the United States, Germany, Japan, and ISO. The specific steps are as follows. To create a hole feature, use the Hole command in the function menu: either select it directly or search for it using the command search box. The hole configuration options are used to determine the type, standards, parameters, range, angle, depth, threads, and other details of the holes based on the design requirements. Once the hole design configuration is completed, simply select the desired location to create it; details can be adjusted at any time using the options bar on the left, which makes it very convenient. II. Custom Editing: In addition to directly using existing hole features, HaoChen 3D also supports parameterized custom editing of holes. We can freely add dimension parameters for holes and edit them using the existing Excel spreadsheet, thereby achieving a seamless integration between 3D design software and office software. III. Automatic recognition: In the 3D design process, it is common to encounter situations where there are no hole features in the part design tree of the imported 3D model. However, HaoChen 3D can automatically recognize hole commands, thereby quickly converting the imported CAD data from different formats into feature models. The specific steps are as follows: Select the hole recognition command to locate the spare hole features in the model and replace them. Haocheng 3D can not only automatically identify feature holes, but also modify hole parameters and classify the identified holes according to array features. Select the target hole and replace the candidate hole with the hole feature. IV. In the engineering drawing design environment, thanks to the use of the feature annotation command (Intelligent Dimensions – Feature Annotation), HaoChen 3D can automatically identify the number of arrayed holes. In addition, HaoChen 3D can also create hole parameter tables. The above are the tips for using intelligent annotation in HaoChen 3D software. For more detailed information on how to use annotation in HaoChen 3D, please stay tuned to me – I will keep sharing high-quality 3D tutorials with you.