Constructing Solid Parts and Sheet Metal Parts The prime function of Autodesk Inventor is to construct computer models in the form of 3D parametric solid parts and 3D sheet metal parts that represent a component part in the computer. Figure 1–1 shows a solid part for the model of a component of a radio controlled toy car. Constructing Assemblies of Solid Parts, Constructing Exploded Presentation of Assemblies, Constructing Engineering Drawings, Assembly Files To construct an assembly or a sub-assembly, you use an assembly file; the file extension is .iam. An assembly file links to a set of parametric 3D solid parts and/or sub-assembly of parametric 3D solid parts. Parametric Feature based solid modeling concepts. Sketched Solid Features Sketched solid features derive from sketches. There are four basic kinds of sketched solid features: extruded, revolved, loft, and sweep. In addition, there are other kinds of sketched features: coil, rib, and split. Sketched Surface Features Part Modeling Using the four basic sketched feature construction methods (extruding a sketch, revolving a sketch, lofting two or more sketches, and sweeping a sketch along another sketch), you can construct surfaces as well as solids. Boolean Operations, Placed Solid Features.
Assembly Modeling Concepts With the exception of very simple objects, such as a ruler, most objects have more than one part put together to form a useful whole. The set of parts put together is called an assembly. When you design the parts for an assembly, the relative dimensions and positions of parts, and how they fit together, are crucial. Part File and Assembly File
To construct an assembly in the computer, you start a new assembly file and connect a set of relevant part files and/or assembly files (sub-assemblies) to the assembly file. In the computer, the part files store the information about the 3D objects and the assembly files store the information about how you assemble the 3D objects together.
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