The manufacturing industry has continued to evolve at an unprecedented rate over the past two decades. New technologies have given workers more options than ever before when it comes to using 3D modeling for production purposes. Many specialized types of these digital models vary greatly in their applications. However, they all serve to provide some form of communication between the designer and the manufacturer. That allows them to understand what each side requires to create an accurate rendition of the desired product. The types of CAD models include
Polygon modeling involves creating a simple mesh with fewer polygons and vertexes to make it look smooth and natural after it’s been applied on a surface. The process works by inputting a wireframe structure into a program before adding detail to it at specific angles from the baseline from low polygon modeling to smoothen its edges for complex surfaces such as characters. Also, polygon modeling uses parametric objects created by triangles, lines, or polygons as curves or meshes, respectively. The benefit of this type of modeling is that it will adapt to any movement no matter how much detail the model has.
Non-Uniform Rational B-Spline (NURBS)
NURBS entails creating surfaces by mathematically defined rules rather than precise geometric measurements. It’s commonly used in movie production because it allows animators to create curved objects by applying a few control points and curves rather than working with the individual triangles used in polygonal modeling. The end-user can then modify or manipulate these curves for various effects. Another advantage of NURBS is that you can use it as an efficient program since it can operate independently. For instance, the Minitec Profile Systems depend on this technology to establish realistic models of different products, including hinges, screws, profile fasteners, bumpers, latches, and handles. Further, it allows customization and human intervention to add an effective finishing touch to your 3D models.
Computer-Aided Design (CAD)
This method uses 3D geometry to create 2D drawings of parts, assemblies, and other products. It involves using software for industrial purposes, such as making prototype designs before they go into production. The process starts by importing the data from the initial design, which can be created through either Solid Works or AutoCAD. After importing the data, it goes through Numerical Computer (NC) code steps, where tool paths are created for CNC (Computer Numerical Control) machines such as laser cutters and 3D printers. There are two basic types of computer-aided design: vector and raster. Vector CAD allows the user to draft by drawing geometric shapes such as circles and squares, which can be joined together to make elaborate designs. Raster CAD divides an image into thousands of tiny pixels, each of which can be assigned color and depth information.
Wireframe models are made up of straight lines that form triangles – they remain unconnected throughout the entirety of creation. These models lack any shading or texture detail; their main purpose is to serve as blueprints for final products. It’s best practice to use wireframe models when prototyping because it’s easier to modify them (helps accomplish more complex bends and surfaces) but harder to output the models.
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