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3D Engineering Drawings

Learn the importance of drawing in engineering, explore concepts like isometric views, technical symbols, and dimensions. Engage in hands-on activities to enhance creativity, communication, and visualization skills. Discover the significance of starting with manual drawings before transitioning to computer-aided design tools like Solidworks.

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3D Engineering Drawings

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  1. 3D Engineering Drawings Toying with Technology

  2. Why is drawing important? • Communication • Ideas • Parts/Assemblies • Dimensions and Units

  3. Why I like design • Engineering without technical theories and equations • Creative • Enjoyable

  4. Computer Aided Design - Solidworks

  5. Starting out • You can’t just jump into creating on the computer…. • You have to start by hand!!

  6. Engineering Paper • English vs. Metric Units • Cartesian vs. Engineering vs. Isometric

  7. Visualizing in 3D • Take 3 to 5 Duplo Legos and put them together however you like • Visualize clear box around your structure • Draw each side of the “box” on the box template on your table • Fold and tape into box formation • Does it resemble actual structure?

  8. Drawings and communication • Find someone in the room to trade boxes with • Can you build each other’s structure? • What was easy about building the new structure? • What was difficult about building the new structure? • What could have improved your build?

  9. Engineers don’t draw on boxes • Let’s find a way to flatten that box • Shade in the following sides on your box with the crayons at your table: • Top = red • Pick two adjacent sides that also touch the top = Make one blue and one yellow

  10. Engineering Technical Drawings

  11. Isometric Views • Drawing looking at corner of “box”, not straight on face

  12. A little Geometry http://www.mr-d-n-t.co.uk/isometric.htm

  13. A Drawing Demonstration • 1 – Draw Side Shape • 2 – Project Corners Backward • 3 - Draw Back Shape • http://www.youtube.com/watch?v=ZBuhGaGPYfQ

  14. Practice Isometric Drawings • Cube – 5 x 5 x 5 • Cube – 8 x 8 x 8 • Rectangular Prism – 4 x 3 x 7 • Rectangular Prism – 3 x 9 x 3 • Triangular Prism - Right triangle with legs = 7, depth = 3 • Pyramid – Base = 4 squares • Cut-Off Pyramid – Base = 16 squares, top row = 4 squares • Challenge: Cube 2 x 2 x 2 with pyramid on top

  15. Finish that technical drawing • Draw your Duplo Masterpiece on the isometric view of your technical drawing

  16. Let’s Trade again • Find someone new and trade again • Build their structure • Was one drawing type easier than the other?

  17. Technical Drawing Symbols • Understanding Symbols: http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG16204

  18. Technical Drawing Lines • Understanding Lines: http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG16004

  19. Technical Drawing Dimensions • Understanding dimensions: http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG16104

  20. A little extra Visualization • http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG19404

  21. Challenge Build

  22. Why this is important to you • Improve accuracy • Future Projects • Rube Goldberg • Boat Activity • Lego Egg Drop

  23. Assignment • Draw an item in your kitchen. • Under the assignments tab • Will turn in by hand • Due: September 17th

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