TAILIEUCHUNG - Lecture Autodesk inventor: Solid modeling – Primitives and boolean operations

After completing this chapter you will be able to: Understand the terminology used in 3-D modeling, define the most popular types of 3-D modeling systems, apply Boolean operations to 3-D objects, understand the role planning plays in building a constraint-based model. | Solid Modeling – Primitives and Boolean Operations Need to start modeling right away Will talk about background and theoretical issues later Solid Primitives Primitives are simple solid objects created directly in a CAD system Examples include: box, sphere, cylinder, cone, wedge, torus Model Building in AutoCAD Length - in x axis direction Width - in y axis direction Height - in z axis direction Length, width and height can be positive or negative A positive dimension indicates movement in direction of positive axis A negative dimension indicates movement in opposite, or negative direction In AutoCAD, the following dimensions are associated with the three coordinate axes: Solid Composites Primitives combined using Boolean operations to create solid composites Boolean operations used in solid modeling are: Union Intersection Subtraction Union Union means set of all elements belonging to either A or B A È B Union of two or more solids creates a composite solid composed of combined volumes of these solids In set theory, the union of two sets, A and B, is represented pictorially as: Parts common to A and to B are only counted once Intersection Set of all elements belonging to both A and B A Ç B Intersection of two or more solids creates a composite solid composed of volume common to original solids Intersection of two sets, A and B: Subtraction 1 Set of all elements belonging to A but not B A – B Subtraction of two solids creates a composite solid composed of volume of first solid minus common volume shared with second solid Subtraction of two sets, A and B: Subtraction 2 Alternatively, B - A is represented pictorially as: Solid Modeling – Primitives and Boolean Operations .

• Đồ họa - Thiết kế - Flash
• Autodesk inventor
• Lecture Autodesk inventor
• Solid modeling
• Boolean operations
• Solid primitives
• Solid composites
• Giáo trình Hướng dẫn học Autodesk Inventor
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• Lắp ráp các chi tiết
• Mastering Autodesk® Inventor® 2012
• Autodesk® Inventor LT™ 2012
• Mastering IVN 2012
• Inventor design philosophy
• Data and projects
• Basic modeling techniques
• Giáo trình phần mềm Autodesk Inventor 2014
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• Lệnh tạo mô hình 3D
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• tài liệu đồ họa
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• AutoCAD Mechanical desktop file
• Thiết kế cơ khí 3D
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• Swept solids
• Extruded solids
• Revolved solids
• Solid modeling data structures
• Boundary representation modeling
• B rep data structure
• Space curves
• Classes of CAD splines
• Cubic spline
• Bezier curves
• Parametric modeling
• Parametric modeling characteristics
• Dimensional constraints
• Feature based modeling
• Parametric sketching
• Feature creation procedure
• Sketch plane
• Rough sketch
• Sketched features
• Part creation
• Sketched feature operations
• Sketched feature terminations
• Part editing
• Feature tree
• Parent child relationships
• Editing the model
• Part documentation
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• Advanced part modeling
• Loft feature
• Mirror features
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• Parametric assembly modeling
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• Principal enclosing box
• Enclosing box
• Imaginary box
• Principal dimensions
• Projection theory
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• Perspective projection
• Projection plane
• Perspective projection characteristics
• Perspective sketch
• Vanishing points
• Parallel projection
• Parallel lines
• Uniform foreshortening