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Technological Design

Technological Design. Sketching. Why Draw ?. Universal Language or the Language of Industry “A Picture is worth 1000 words”. Line Types. Construction used to build the drawings very light solid line ________ Object used to show the object thicker, darker solid line _______

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Technological Design

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  1. Technological Design Sketching

  2. Why Draw ? • Universal Language or the Language of Industry “A Picture is worth 1000 words”

  3. Line Types • Construction • used to build the drawings • very light solid line ________ • Object • used to show the object • thicker, darker solid line _______ • Hidden • used to show hidden features of an object • thin dark dashed line _ _ _ _ _ _ _ _

  4. Center lines • A center line represents an axis of symmetry • ___ _ ___

  5. Sketching • Created freehand • Must be done neat and clear • use proper perspective • Must be done quickly and efficiently

  6. Drawings & Scale • Draw an object to scale….. “it is directly proportional to the actual object” • Scale: 1 : 1 Is proportional to 1 Unit of Actual Object 1 Unit on Paper

  7. Reduced Scale • Scale: 1 : 10 Is proportional to 10 Unit of Actual Object 1 Unit on Paper DRAWING IS 10 TIMES SMALLER THAN THE OBJECT

  8. Enlarged Scale • Scale: 10 : 1 Is proportional to 1 Unit of Actual Object 10 Unit on Paper DRAWING IS 10 TIMES LARGER THAN THE OBJECT

  9. Hand drawing – Sketching to scale • Plan your use of space • Choose the appropriate scale • Use the grid on the paper to draw to scale • Label the drawing clearly using good hand lettering skills

  10. Sketching to scale–Basic steps • Build a frame

  11. Sketching to scale–Basic steps • Block in overall sizes for each detail

  12. Sketching to scale–Basic steps • Add the details

  13. Sketching to scale–Basic steps • Darken the lines

  14. Spacing the Views • Draw the views so that they are balanced on the drawing paper • Avoid crowding or excessive space

  15. 6-4 Hidden Surfaces and Edges Drawing hidden lines

  16. Technique Circles 1 2 3 4 5 6

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