Some polygon editing basics for beginners, Part 1

This polygon modeling tutorial is designed for people new to polygon modeling who want to better understand the nature of geometry construction. It covers the nature of polygons (triangles, quads, ngons) and their subcomponents (vertices, edges, fill), overlapping vs connected elements and possible problems that can be encountered when constructing geometry. It also shows how to use active grids to carefully construct geometry.
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Model a simple triangular object with a hole, for beginners: Method 3 (CX)

This third tutorial models a simple triangular object with a circular hole, but this time using subdivision surfaces. It shows how to properly configure the 'control cage' to produce the subdivision object. It also shows how to maintain hard corners by using the Toggle Hardness function.
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Model a simple triangular object with a hole, for beginners: Method 2 (CX)

This second tutorial dealing with a simple triangular object with a circular hole recreates the object, but using a somewhat different approach. It's geared towards those new to Design 3D who want to learn polygon manipulation.
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Model a simple triangular object with a hole, for beginners: Method 1 (CX)

This somewhat extensive modeling tutorial for beginners walks through the process of creating a simple triangle object with a circular hole through it. Even though the end result is a simple object, the tutorial covers many fundamental concepts such as active grids, constraint use (active grids, guides), basic polygon modeling, the use of normals and the difference between object and element editing.
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