1. Intro to 3D Modeling & CADD
Wednesday, October
Mr. Fuggi – Intro to Tech. Ed.

2. What is CAD(D)? Computer Aided Drafting and Design
Drafting  A technical drawing that clearly specifies all dimensions of an item to be engineered

3. Why is CAD(D) relevant?
It is the industry standard way that products and goods are designed in the modern world
It is how engineers and designers turn two-dimensional drawings into three-dimensional models
Many of the manufacturing tools and machines used today are able to understand 3-D code in order to create a product or good

4. The Design Process:
Most products start out with some sort of drawing (hand drawn)
Revisions are made until the designer(s) are satisfied with the design
All flaws are fixed from original design  think about the evolution of the iPhone… it never ends
The design is then translated into a “multi-view drawing”
Multi-View Drawings = Technical Drawing with dimensions
The technical drawing is then created in 3-D space by the CAD(D) engineer
The product is then made by manufacturing machinery
Machined (Mill, Water Jet, Lathe, CNC Cutter)
3D Printed

5. Understanding Technical Drawings:
Why is this important?
So design engineers know how to design a specified product
What are two things that every product has?
Size and shape

6. Try it out: On the Desktop, open the program 123D Design
Take a few minutes to become familiar with the software before class is over

7. Single View Drawing (Isometric) – a detailed illustration of a drawing from one view, usually angled at 30 degrees

8. Understanding Technical Drawings:
Imagine that the object is in a clear box and the views are from each side of the box

9. Multi-View Drawing (Orthographic)– Drawing that includes multiple sides of an object
What is the height of this object?
What is the width of this object?
What is the radius of the hole?

10. Understanding Technical Drawings:
What is the width of the iPod?
What is the height of the iPod?
What is the height of the screen?
What is the diameter of the touch-wheel?

11. CAD(D) Vocabulary: Sketch Dimension Extrude Hidden Line Isometric View
Pan
Orbit
Fillet
Chamfer
View/Perspective Cube

12. Friday, October 20 2017 Mr. Fuggi – Intro to Tech. Ed.
Good Morning
Friday, October
Mr. Fuggi – Intro to Tech. Ed.

13. Steps for Building in 123D Design:
Edit Grid  Select Units and Grid Size
Click on “Home View”
Always begin sketching from the “Top” view in 123D
Choose which sketch tool to use (rectangle, circle, line)
Dimension your sketch as you build it
Extrude

14. In 123D Design: Click on “Start New Project”
In the bottom right corner, click on “Edit Grid”
Units = Inches
Width = 15
Height = 15

15. View Cube
The cube in the top right corner of the drawing space. (Indicates the current view and allows you to change perspectives with a single click.)

16. Sketch Creating a 2-dimensional shape on a plane
Plane – X,Y or Z axes
(Once a sketch is completed, it can then be manipulated)

17. Dimension
When sketches are drawn, the user must specify the size of the figure (Length, Width, Height, Depth)

18. Extrude
The function that allows a 2-dimensional sketch to become 3-dimensional
The user specifies this dimension

19. Pan
Changing your view on the vertical or horizontal axis without changing your perspective (angle) on an object
(You would most likely use this when you are zoomed in on an object making fine changes or when working on a large object)

20. Orbit (Rotate)
When you change your view by altering the angle of which you are viewing an object.
This allows the user to see different sides of the object.

21. Hidden Line
A dashed line shown in a technical drawing that indicates there is a line behind or inside the side that is shown
It shows hidden features not visible to the eye from the current view

22. Home View (Isometric View)
The view that shows 3 sides of the object being designed. It shows all three axes from one view (X,Y and Z)

23. Fillet
A command that rounds an interior or exterior edge of a design to a specified radius

24. Chamfer
A symmetrical sloping of an edge or corner

25. Please make the following shapes
Let’s try it out!
Please open the 123D Design Program on the computer
Please make the following shapes
Cylinder (Diameter =2, Height =4)
Rectangle (2x4x1) (LxWxH)
**Challenge Build: Square (4x4x2) with a 1” hole through the middle)

26. Daily Agenda: Review your notes – 7 min Quizziz
Additional Review/Finish up any CADD drawings