1. Tuesday, January 3 2016 Mr. Fuggi – Intro to Tech. Ed.
Happy New Year!
Tuesday, January
Mr. Fuggi – Intro to Tech. Ed.

2. What is CAD(D)? Computer Aided Drafting and Design
Drafting  An 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 Process:
Most all products start out with some sort of drawing (hand drawn)
Revisions are made until the designer(s) are happy with the design
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 a manufacturing process
Machined (Mill, Water Jet, Lathe, CNC Cutter)
3D Printed

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

6. 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?
Single View Drawing – a detailed illustration of a drawing from one view

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

8. Understanding Technical Drawings:
What is the height of this object?
What is the width of this object?
What is the radius of the hole?
Orthographic Drawing – Drawing that includes multiple sides of an object

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

10. Sketch
Sketching is when you are creating a 2-dimensional shape on a plane
Plane – X,Y or Z axes
Once a sketch is completed, it can then be manipulated

11. Dimension
When sketches are drawn, the user must specify the size of the figure they are drawing
Length, Width, Height, Depth

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

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

14. Isometric View
The view that visually represents three-dimensional objects from a 2- dimensional view, it shows all three axes from one view (X,Y and Z)
In 123D Design and most all CAD(D) programs, this is known as the home view

15. Pan
Panning is when you are changing your position on the vertical or horizontal axis without changing your view perspective 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

16. Orbit
“Orbit” is when you change your view by altering the perspective of which you are viewing an object. This allows the user to see different sides of the object.

17. Fillet
“Fillet” is a command that rounds an interior or exterior edge of a design to a specified radius

18. Chamfer
A symmetrical sloping of an edge or corner

19. View/Perspective Cube
The cube in the top right corner of the drawing space. This indicates the perspective of the current view and allows you to change perspectives with a single click.
By clicking the “home” button, it returns you to your isometric view.

20. Let’s try it out! Please open the 123D Design Program on the computer
Please make the following shapes
Square (2x2x2)
Cylinder (Diameter =2, Height =4)
Rectangle (2x4x1) (LxWxH)
**Challenge Build: Square (4x4x2) with a 1” hole through the middle)
Save this when you are done