2. Highlights of Previous Lecture
• Learnt what a robot is?
• Robot Uses
• Common Robotic Parts
3. Today’s Lecture
• Working Areas in Robotics
• Introduction to Computer Aided Drafting (CAD)
• CAD Advantages
• Different Types of CAD softwares
• Introduction to Pro Engineer (Features)
• Environment Familiarization
• Different types of file extentions
• Working Directory Setting
• Making Our First Sketch
4. Working Areas in Robotics
Mechanical
Electrical
and Computers
Electronics
5. Working Areas in Robotics (Cont)
Mechanical
• Structure
• Joint Mechanism Mechanical
• Bearings
• Heat Transfer
Characteristics Electrical
and Computers
• Sensors Electronics
6. Working Areas in Robotics (Cont)
Electrical and Electronics
• Control Electronics
• Power Amplifiers Mechanical
• Signal Conditioning
• Sensors
Electrical
and Computers
Electronics
7. Working Areas in Robotics (Cont)
Computers
• Computing Hardware
Design Mechanical
Electrical
and Computers
Electronics
8. Lets Make Things Easy
• In order to master
robotics we will focus
on subsystems.
• Mechanical is a huge
field therefore we’ll
only be working on Mechanical
structures only
9. History of Drawing
• All the drawings were previously made on paper using
special tools (Pictures of manual drafts to follow)
• Tools also to be displayed
• Engineering design graphics has made significant
changes since the early 1980s. For the most part, these
changes are a result of the evolution of computer-
aided design (CAD). Before CAD, design was
accomplished by traditional board drafting utilizing
paper, pencil, straightedges, and various other manual
drafting devices.
10. Introduction to CAD
• All the products today are designed using
computer (examples to follow of different
products and robots)
11. Introduction to CAD
• CAD stands Computer Aided Drafting
(Common sense says that we use computer to
product our drafts)
12. Getting Started with Pro/E
• Double click the Pro/ENGINEER icon on your
desktop to get started
• Splash screen will appear and after a while
Pro/ENGINEER window will be visible
14. Tool Bars
File Edit View Model Datum
Toolbar Toolbar Toolbar Display Display
Toolbar Toolbar
15. Setting up Working Directory
• File > Set Working Directory
Working Directory should be selected before starting work in Pro/ENGINEER
Wildfire 4.0
16. Getting Started to Draw
• Click the “New” button on the File Toolbar
• The “New” window appears
17. • Select “Sketch”
• Name it “Sketch1”
• Click “OK” or Press Enter
• The “Sketch Mode” will now be available
18. Some Definitions
• Sketcher
– A 2D drafting/drawing mode
• Sketch
– The entities of a section that define the basic
shape of a feature
• Entity
– An element within the sketcher environment, such
as a line, arc, or circle
19. The Sketch Mode Environment
Sketcher Toolbar
Drawing Area/Sheet
20. The Sketcher Toolbar
Select tool
Line tool
Rectangle tool
Circle tool
Arc tool
Fillet tool
Spline tool
Point tool
Create Dimension tool
Modify Dimension tool
Add Constraints tool
Add Text tool
Insert for foreign data
Trim tool
Mirror tool
22. Exploring the “Line” tool
• The “line” when expanded looks like this
Draws a 2-point line
Draws tangent lines w.r.t 2 curves
Draws center line
23. Circle Tool & its Drop Down Arrow
• We will now have a look at the different options in
the Circle tool
• Click the drop down arrow and you will the expanded
tools
Draws circle w.r.t center and a point
Concentric circle – circle within a circle
Draws circle w.r.t to 3 points
Draws circle w.r.t to 3 tangents
Draws an ellipse or an oval
24. More of the “Arc” tool
• Clicking the drop down arrow at the side of the “arc”
tool, displays sub-options
26. The “Fillet” Tool
• We will be rounding its edges with the “Fillet” tool,
available in the Features toolbar
• A “Select” pop-up window appears when click on the
“Fillet” icon
• Also observe the message in the “Message” box at
the bottom of the screen
27. • “Select 2 entities” mean selecting two
different lines
• We will click the horizontal line first. It will
turn blue. And then click the vertical line.
