Drawing and Dimensioning MultiviewDrawings ... Sketching a Multiview Drawing Step #1:Calculate the amount

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  • Drawing and Dimensioning

    Multiview Drawings

  • Multiview Drawing

    A multiview drawing is one that shows two or more two-dimensional views of a three- dimensional object. Multiview drawings provide the shape description of an object. When combined with dimensions, multiview drawings serve as the main form of communication between designers and manufacturers.

  • Width, Depth, and Height

    All three-dimensional objects have width, height, and depth. Width is associated with an object’s side- to-side dimension. Height is the measure of an object from top-to-bottom. Depth is associated with front-to-back distance.

  • 45°

    Width, Depth, and Height

  • Orthographic projection is a technique that is used to create multiview drawings. Orthographic projection is any projection of the features of an object onto an imaginary plane of projection. The projection of the features of the object is made by lines of sight that are perpendicular to the plane of projection.

    Orthographic Projection

  • Sketching a Multiview Drawing

    Step #1: Calculate the amount of space that the views will take up.

  • Calculating Required Space

    On grid paper

    Overall Multiview

    Sketch Height?

    Overall Multiview

    Sketch Width? 18 spaces

    12 spaces

  • Sketching a Multiview Drawing

    Step #1: Calculate the amount of space that the views will take up.

    Step #2: Layout box within which the individual views will occur.

  • Sketching Box Layout

  • Sketching a Multiview Drawing

    Step #1: Calculate the amount of space that the views will take up.

    Step #2: Layout box within which the individual views will occur.

  • Object Line Layout 1. ADD UP - height of front view + -1-1/2” space + -depth of top view = HEIGHT of BOX

    2. ADD UP - width of front view + -1-1/2” space + -depth of right view = WIDTH of BOX

    WIDTH DEPTH1-1/2”

    1-1/2”

    HEIGHT

    DEPTH

  • Dimensions and Orthographics

  • Dimensions and Orthographics

    DIMENSION RULES

    1. Keep ALL dimensions inside the layout Box, unless absolutely necessary due to space and organization

    2. Never repeat dimensions 3. Never dimension to hidden lines 4. Keep all width, depths, and heights to

    one view, unless necessary due to detail of drawing and organization