TAILIEUCHUNG - Lecture Autodesk inventor: Orthographic projections

Projection is defined as an image or drawing of an object made on a plane. All drawings used in the field of engineering are based on the principles of projection. That is why engineering drawings are capable to precisely convey the external as well as internal features of objects in terms of their shape and size. Projections can be classified on the basis of line of sight and the position of plane on which the drawing is made. | Orthographic Projections Orthographic Projections Parallel projection technique Projectors normal to projection plane Projection Plane Projectors NOTE: CAD Systems typically use orthographic projection Orthographic Projection Categories Axonometric Three object faces visible No principal axes parallel/perpendicular to projection plane Multiview Only one object face visible One object face (., two principal axes) parallel to projection plane Axonometric Projections Trimetric – no equal angles All principal axes foreshortened unequally Classed according to angles made by principal axes when projected onto projection plane Dimetric – two angles are equal Two principal axes are equally foreshortened Isometric – all angles equal (iso equal, metric measure) All principal axes foreshortened equally Axonometric Projection Classes Axonometric Projection Classes Top View Front View Front View - Axes Only Isometric Scaling Lines parallel to any principal axis are foreshortened equally ( scaled proportionally) Measurements can be made parallel to any of the three principal axes NOTE: In a trimetric projection, measurements along a given principal axis are proportional; however, measurements along different principal axes are not scalable Isometric Projections All 3 principal axes equally foreshortened same scale Can be visualized as looking down the diagonal of a cube Trimetric Projection Isometric Projection Isometric Drawings Each axis is foreshortened to approximately 82% of its true length To correct for this, an isometric projection can be plotted at a scale of 1/.82 (~). This convenient approximation of an isometric projection is called an isometric drawing It can be shown that, in an isometric projection: Isometric Viewing About a vertical axis (45 ± 90n)º (n is an integer), then An isometric projection is obtained by rotating the view: Out of the horizontal plane, ± Front Front, Side Top, Front, Side Isometric Sketching In sketching an isometric .

• Đồ họa - Thiết kế - Flash
• Autodesk inventor
• Lecture Autodesk inventor
• Orthographic projections
• Orthographic projection categories
• Axonometric projections
• Axonometric projection classes
• Giáo trình Hướng dẫn học Autodesk Inventor
• Hướng dẫn học Autodesk Inventor
• Học Autodesk Inventor
• Sử dụng Autodesk Inventor
• Giới thiệu Autodesk Inventor
• Tài liệu Autodesk Inventor
• Bài giảng Autodesk Inventor
• Thiết kế cơ khí
• Phần mềm Autodesk Inventor
• Ứng dụng Autodesk Inventor
• Chức năng Autodesk Inventor
• Giáo trình Autodesk Inventor
• Tài liệu về Autodesk Inventor
• Hướng dẫn sử dụng Autodesk Inventor
• Thiết kế chi tiết kim loại tấm
• 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
• Sử dụng phần mềm Autodesk Inventor 2014
• Thiết kế hệ thống máy
• Mô phỏng hệ thống máy
• Phần mềm Autodesk Inventor 2014
• Hướng dẫn sử dụng phần mềm Autodesk Inventor
• Lệnh tạo mô hình 3D
• Môi trường vẽ phác biên dạng 2D
• Công cụ tạo mô hình 3D
• Mô phỏng quá trình lắp ráp
• Lệnh tweak components
• inventor 2011
• giáo trình inventor 2011
• tài liệu inventor 2011
• lý thuyết inventor 2011
• tài liệu đồ họa
• phần mềm đồ họa
• hổ trợ kĩ thuật
• vẽ sketch 2D và 3D
• Autodesk Inventor 9
• Thiết kế phần mềm cơ khí
• Phần mềm công nghệ
• Cài đặt phần mềm
• Thiết kế phần mềm
• Nghiên cứu AutoDesk Inventor
• AutoCAD Mechanical desktop file
• Thiết kế cơ khí 3D
• Thiết kế vật thể 3D
• Solid modeling
• 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
• Parametric modeling files
• Concurrent engineering
• Model data associativity
• Advanced part modeling
• Loft feature
• Mirror features
• Part features
• Parametric assembly modeling
• Assembly modeling tools
• Assembly constraints
• Top down assembly design
• Principal enclosing box
• Enclosing box
• Imaginary box
• Principal dimensions
• Projection theory
• Parallel projections
• Perspective projection
• Projection plane
• Perspective projection characteristics
• Perspective sketch
• Vanishing points
• Parallel projection
• Parallel lines
• Uniform foreshortening