• Thiết kế flash - Finding an auxiliary viewThiết kế flash - Finding an auxiliary view

    Views unfolded - auxiliary view shows true size and shape of inclined surface Distance from hinge to edge of inclined surface same for all views, principal or auxiliary Convention is to only show inclined surface in an auxiliary view

    ppt9 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 568 | Lượt tải: 0

  • Thiết kế flash - Auxiliary viewsThiết kế flash - Auxiliary views

    Surfaces maintain basic shape from one view to the next, accept when viewed on edge Useful for objects with inclined and oblique surfaces

    ppt10 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 804 | Lượt tải: 0

  • Thiết kế flash - Visualization techniquesThiết kế flash - Visualization techniques

    Surfaces maintain basic shape from one view to the next, accept when viewed on edge Useful for objects with inclined and oblique surfaces Purdue Spatial Visualization Test: Rotations (PSVT:R) Mental Cutting Test (MCT) Mental Rotation Test (MRT)

    ppt13 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 571 | Lượt tải: 0

  • Thiết kế flash - Multiview projections 3Thiết kế flash - Multiview projections 3

    Fillet – inside rounding on a cast, forged or plastic part Round – outside rounding on a cast, forged or plastic part Typically 3 - 5 mm radius In multiview drawings, fillets/rounds only represented in views where you see curved shape

    ppt17 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 603 | Lượt tải: 0

  • Thiết kế flash - Multiview projections - 2Thiết kế flash - Multiview projections - 2

    A single-curved surface has curvature about a single axis Curvature only seen in one multiview Center lines used to indicate axis of curvature In isometric views, single-curved surfaces appear as ellipses

    ppt6 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 540 | Lượt tải: 0

  • Thiết kế flash - Multiview projections 1Thiết kế flash - Multiview projections 1

    Top and Front are vertically aligned, share width dimension Front and Right are horizontally in line, share height dimension Top and right are not aligned, share depth dimension

    ppt14 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 758 | Lượt tải: 0

  • Thiết kế flash - Orthographic projectionsThiết kế flash - Orthographic projections

    It can be shown that, in an isometric projection: 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 (~1.22). This convenient approximation of an isometric projection is called an isometric drawing

    ppt12 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 625 | Lượt tải: 0

  • Thiết kế flash - Oblique projectionsThiết kế flash - Oblique projections

    Determines relative emphasis of receding planes Related to angle of rotation of projector about the projection plane normal (b) Normally chosen to be 30 °, 45 °, or 60 °

    ppt10 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 537 | Lượt tải: 0

  • Thiết kế flash - Parallel projectionsThiết kế flash - Parallel projections

    Center of Projection is an infinite distance from projection plane  parallel projectors In a parallel projection: Parallel lines on object remain parallel on image No diminution of size Uniform foreshortening

    ppt4 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 567 | Lượt tải: 0

  • Thiết kế flash - Perspective projectionThiết kế flash - Perspective projection

    A vanishing point is found by passing a line through the center of projection, parallel to a set of parallel object edges. The point where the line pierces the projection plane is the vanishing point.

    ppt14 trang | Chia sẻ: huyhoang44 | Ngày: 18/03/2020 | Lượt xem: 504 | Lượt tải: 0