WHY IS DRAWING IMPORTANT? • Communication • Ideas • Parts/Assemblies • Dimensions and Units WHY I LIKE DESIGN • Engineering without technical theories and equations • Creative • Enjoyable COMPUTER AIDED DESIGN - SOLIDWORKS STARTING OUT • You can’t just jump into creating on the computer…. • You have to start by hand!! ENGINEERING PAPER • English vs. Metric Units • Cartesian vs. Engineering vs. Isometric 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? 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? 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 ENGINEERING TECHNICAL DRAWINGS ISOMETRIC VIEWS • Drawing looking at corner of “box”, not straight on face A LITTLE GEOMETRY http://www.mr-d-n-t.co.uk/isometric.htm A DRAWING DEMONSTRATION 1 – Draw Side Shape 2 – Project Corners Backward 3 - Draw Back Shape http://www.youtube.com/watch?v=ZBuhGaGPYfQ 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 FINISH THAT TECHNICAL DRAWING Draw your Duplo Masterpiece on the isometric view of your technical drawing LET’S TRADE AGAIN • Find someone new and trade again • Build their structure • Was one drawing type easier than the other? TECHNICAL DRAWING SYMBOLS • Understanding Symbols: http://www.wisconline.com/Objects/ViewObject.aspx?ID=ENG16204 TECHNICAL DRAWING LINES • Understanding Lines: http://www.wisconline.com/Objects/ViewObject.aspx?ID=ENG16004 TECHNICAL DRAWING DIMENSIONS • Understanding dimensions: http://www.wisconline.com/Objects/ViewObject.aspx?ID=ENG16104 A LITTLE EXTRA VISUALIZATION http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG19404 CHALLENGE BUILD WHY THIS IS IMPORTANT TO YOU • • Improve accuracy Future Projects • Rube Goldberg • Boat Activity • Lego Egg Drop ASSIGNMENT • Draw an item in your kitchen. • Under the assignments tab • Will turn in by hand • Due: September 17th