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Orthographic Drawings

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Orthographic Drawings What does the word Orthographic Mean? Ortho 90 Degrees or right angle Graphic to draw or a picture To draw pictures 90 degrees from each ... – PowerPoint PPT presentation

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Title: Orthographic Drawings


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Orthographic Drawings
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What does the word Orthographic Mean?
  • Ortho 90 Degrees or right angle
  • Graphic to draw or a picture
  • To draw pictures 90 degrees from each other.

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The three common orthographic planes are Top,
Front, and Right Side
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Orthographic Projections
  • 3 views of an object that are 90 degrees to each
    other
  • Usually the Top, Front, and Right Side views are
    used

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To get Orthographic projections based on the top,
front, and right side views, we use a special
technique that allows us to see each view
straight on.
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Transparent Cube
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If you place an object to be drawn inside of a
transparent cube, you can then project the image
of each side directly onto the face of the cube.
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Inside the cube
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When we unfold the cube
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We typically only use 3 of the six viewsTop,
Front, and Right Side
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To visualize an object without the transparent
cube, hold the object and look at it straight on
from each view Top, Front, and Right Side.Then
draw what you see.
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Another concern is the problem of figuring out
which line represents WHAT in the other
views.What follows is a way of determining how
to do this
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Each surface can be identified in each view
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