CAD Tips

Thread Content

1 Create a wireframe: Enter the coordinates of the 3D point to create a 3D object. 2 Set a new XY plane and define a new UCS to draw objects. 3 allows the creation of line objects such as 3D polylines (3dpoly) and spline curves (SPC) to build 3D objects. 4 Surface Model: It is represented using a mesh, and the density of the mesh can be customized through system variables, namely surftab1 and Surftab2. Several commonly used commands: Rutesurf: ruled surface ； tabsurf: Translate surface ； Revsurf: Rotating surface ； Edgesurf: Boundary surface. 5 System variables: Splframe: Allows control over the display of hidden edges in 3D meshes. Its value is “0”, so hidden edges are not displayed. “Hidden edges are visible when it is not 0. Level 6: The elevation of an object is based on the reference \"xy\" plane of the current \"UCS\". A positive elevation indicates above that plane, while a negative elevation indicates below that plane. Thickness: The thickness of an object is the distance by which the object is stretched upward or downward from its elevation. Negative thickness indicates stretching in the rural direction (negative z-axis). Conversely, upward. 0 thickness, no stretching. 7 “Elev” is the command for setting the elevation. ““Isolines” wireframe density. ““Facetres” adjusts the smoothness of the coloring and the objects to be desaturated. “Pline” closes the polyline. ““Wedge” – a wedge-shaped piece. “\"Revolve\" rotates to create a solid. This command can only be used on closed objects (such as polylines, polygons, rectangles, circles, ellipses, and regions), but not on 3D objects or objects that are part of a block. This command cannot be used for polylines with intersecting or crossing parts, or for non-closed polylines. 8 Boolean operations on 3D solids: “su” difference. ““union” union. “\"intersect\" or \"interfere\" – intersection. 9 can be used to round corners, chamfer edges, and cut through 3D objects. Modifying the faces of entities, and similar operations. It is also possible to perform operations such as rotation, arraying, and mirroring; functions like “AR”, “Co”, “Mi”, “M”, and “Ro” can be used on both 3D objects and 2D objects. \"Ro\" can be used to rotate 2D objects around a point (base point), while \"Rotate3d\" rotates 3D objects around a specified axis. “3Darray” three-dimensional display. ““Mirrror3D” 3D mirror image. This post was last edited by 401201372 on 2008-1-23 10:32.]