The second development steps of the standard parts library According to InteCAD's PDA_Pro and PDS tools, combined with AutoCAD's menu customization function <2>, the development process can be divided into three steps: 1 to develop the enterprise's drop-down menu / enterprise standard 0; 2 parts Parameterization; 3 parameterized parts storage.
Menu customization Open the INTE-CAD.MNU file located in the InteCAD/R14SET/ directory. Add the following source code in the appropriate position according to the pre-organized menu structure: POP4 ID_BOM National Standard>^P Source code with underlined italic part of the Chinese character is in The section will be displayed in the menu, and if /jgct0 is the name of the data that is connected in the database, it will be used in the parameterized part. The results after the program is executed are as shown.
Part parameterization The specific development process is illustrated below by taking the spacer bushing in the enterprise standard (Q/1D8-235 - effect 0 after program execution) as an example. (1) Quickly draw two-dimensional grass or call out existing shape files without accurately positioning the shape elements (PDA_Pro will determine the exact coordinates of each entity according to the input dimension value). (2) Entity parameterization, labeling the required size (d, D, L as the main control size, will be used in the storage, the two sizes added to eliminate the constraint can be hidden using the Hidel command); set the main size variable Named d, D, L; hides some of the added size and detail added to the constraint during the parameterization process (since the standard part is used in the assembly, the detail part of the part can be omitted to reduce the constraint The quantity, which simplifies the parameterization process of the part); the variables d, D, L are hidden, and are directly marked in the shape as needed in later use.
(3) Use the Pssave command to save the file for use in the library. Unlike the latter command Pdssave, the information stored in Pssave is used directly in the later part-driven real-world, and the information stored in Pdssave is only a preview in the library. The commands used are as shown. After completing the above steps, the results of the program run as shown.
Parameterized part storage After the part is parameterized, the storage operation can be performed. After the entity is parameterized, the parameterized part is first saved using the command Pdssave. Using the command Pdssef for part definition, the dialog box shown will pop up. The main view, left view, and top view are automatically captured when using Pdssave. Click on the variable to pop up the dialog box as shown, define the type and order of the variable according to the actual requirements of the part, and then fill in the content according to the format.
Parametric Part Definition Parametric Part Control Size Parameterized Part Description It is to be noted that the parent node in the grid is the italic body corresponding to the source code in the menu customization, such as the /jgct0 part, but in fact this grid is in the database. The creation is automatically created when the parameterized part is in the library. After the data is created, according to the size of the spacer bushing in the enterprise standard, after completing the above operations, the standard part storage work of a series of part family/spacer bushing 0 is completed. The results after running are as shown.
Parametric part control size operation effect conclusions It can be seen from the examples that it is feasible to customize and develop the standard parts library of general parts and components suitable for the national standard, line standard and enterprise standard of InteCAD based PDA_Pro and PDS tools. It allows designers to get rid of the tedious standard parts and draw them, focusing on the concept of the structure, which greatly improves the design efficiency and design quality.
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