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Orthographic Drawings

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 other. The three common orthographic planes are: Top, Front, and Right Side. Orthographic Projections.

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Orthographic Drawings

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  1. Orthographic Drawings

  2. 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.

  3. The three common orthographic planes are: Top, Front, and Right Side

  4. Orthographic Projections • 3 views of an object that are 90 degrees to each other • Usually the Top, Front, and Right Side views are used

  5. 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”.

  6. Transparent Cube

  7. 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.

  8. Inside the cube

  9. When we unfold the cube…

  10. We typically only use 3 of the six views…Top, Front, and Right Side

  11. 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.

  12. 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…

  13. Each surface can be identified in each view

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