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On a similar note, for the powder-based AM process, melting and fusion or bonding differs from material to material, and inclusion of process dynamics to the software remains a daunting challenge for producing AM components that are compatible to the existing industrial components. Furthermore, for thermoplastics the polymerization process differs from material to material as the degree of polymerization varies, and hence one generic program will not suffice for the entire needs of AM. As a result, every domain space within the model is not conducive to the additive manufacturing (AM) machine interface. The use of solid modeling is widely used in a product development process, but the solid modeling is largely associated with surface generation processes either in the form of sketch and sweep, extrusion process, and feature addition or removal. Ramesh Kuppuswamy, in Additive Manufacturing, 2021 Abstract Path extrusion is the older command and still quite useful in certain situations, while the newer sweep just expands and simplifies the same idea. Path extrusion and sweep, which follow next, are commands with a similar mission but different approaches. Loft is a recent addition to the AutoCAD toolbox, added along with many other 3D enhancements in AutoCAD 2007. The command creates a “shell” of a predetermined thickness out of a solid object. Shell is one of several AutoCAD 3D commands “borrowed” from engineering solid modeling software due to their usefulness. Revolve easily creates complex revolved shapes based on the concept of solid or surface of revolution, and this command has no other equivalent in AutoCAD.
This chapter introduces revolve, shell, taper, loft, path extrusion, and sweep. While these tools are not necessarily more difficult to master, they do open up a new range of modeling possibilities, including some rather complex 3D designs. Elliot Gindis, in Up and Running with AutoCAD 2012 (Second Edition), 2012 Publisher SummaryĪdvanced solid modeling tools make up curved design.
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