1. Fluid Power Challenge: Workshop Day
PRESENTERS:

2. Discovering Fluid Power Video
Stop at 4:15

3. Introduction to Fluid Power

4. Fluid
Liquid
Gas
Water
Oil
Air
Nitrogen
Hydraulics
Pneumatics
What is a Fluid?

5. Hydraulics Pneumatics Examples of Fluid Power Airplane Flaps
Automotive Brake
Dentist Drill
Pneumatic Drill
Excavator
Hydraulic Press
Office Chair
Nail Gun
Advantage and disadvantage to each? / How far away is the power source for each?

6. What is Pressure?
Molecules
Pump
Tank
Hose
Pressure is eventually the same everywhere

7. What is Mechanical Advantage?
Image Source: en.wikipedia.org/wiki/Lever

8. What is Mechanical Advantage? e.g. Hydraulic Lift 100 lbs
Use 60ml and 10ml syringe to demonstrate mechanical advantage.
Piston Area = 20 in2
Piston Area = 1 in2
Pressure = ?

9. How much force is exerted by the piston?
Pneumatic Cylinder
Diameter
Pressure P
Area
Force F
Side View of Cylinder
Cross Section of Piston
How much force is exerted by the piston?
If pressure = 60 psi and diameter = 1 inch:
Area = pi x (1 in)2 / 4 = in2
Force = (60 psi) x (0.785 in2) = 47 lbs/ in2

10. WEAR SAFETY GLASSES NOW!
Explore Tool Kits!
SAFETY FIRST!
WEAR SAFETY GLASSES NOW!
Don’t Open
Workshop KitsYet!

11. Verify Kit Contents Item Description Quantity
Bench Hook/Mitre Box (double-sided, 7/16" slots) 1
C'-clamp (3")
Acrylic Ruler (with 1/16" inch divisions)
Junior Hacksaw
Hacksaw blades (fine, single)
Scissors (5` rounded, 1 pr)
Craft drill
Wood drillbit 3/16" (brad pt)
Round file with handle (1/4" diam.)
Safety Glasses clear lens 4
Mini low-temp Glue Gun, 10W
What is the bench for? What in this kit could hurt you or others?

12. Using wooden pieces from the Workshop Lifter Kit, and additional 2ft
Using wooden pieces from the Workshop Lifter Kit, and additional 2ft. wooden pieces from the Workshop Kit as needed, a small amount of wood glue and green cardboard triangular gussets, build two squares each with external sides of 4”
Each pair builds 1 square. Build one first and make sure the 2nd is the same

13. Construct the lifter and rotational arm using the materials in the kits, instructions in your folders, and tools from the tool kit

14. Divide Tasks Elect Group Leader Assign Roles:
Leader (Check progress of parts and help where needed)
Wood Cutter / Later Arm Builder
Cube Maker 1
Cube Maker 2
Without dividing tasks and working in parallel, you won’t complete the activity. (Same on challenge day)

15. Lifter Kit – Bill Of Materials
Item
Quantity
Description 1 7
12” Wooden pieces (⅜” cross-section) 2
Cards of green corner gussets 3
20cc Syringes (1 has a hole in the plunger) 4
Length of plastic tubing 5
5” long 3/16” Wooden Dowel 6
3” long 3/16” Wooden Dowel 16
White Cardboard Axle Holders 8
Syringe Holder 9
Mini-washers 10
Stirring Sticks 11
Small piece of sand paper

16. Rotational Arm Kit – Bill of Materials
Item
Quantity
Description 1 4
8” Wooden pieces (⅜” cross-section) 2
10” Wooden piece with 3 holes 3
20cc Syringes (1 has a hole in the plunger)
Length of plastic tubing 5
1½” long 3/16” diam. Wooden Dowel 6
1 of each
⅝” & 2” long 3/16”diam. Wooden Dowel 7
White Cardboard Axle Holders 8
Syringe Holder 9
Mini-washers 10
Card of green corner gussets 11
Small piece of sand paper & stirring stick

17. Lunch!

18. Lifter Kit – Reflection
What was the hardest part to build?
What was the most difficult part to coordinate?
Why did we ask you to build this lifter as part of the challenge?
How can you make the process more efficient?

19. The Challenge

20. The Challenge Objective
To design a robot, to be built on challenge day in 2.5 hours, using only the supplied tools and materials, that can score as many points as possible.
Deliverable
Two portfolios on Challenge day
Notes
We are using the “with hands” variation.

24. Discussion
Why is one shelf worth more points than the other?
What if you design a robot that only works when using your hands?
How long will you have to move cylinders?
What tools/materials can you use in your robot on Challenge day?
What are the contents of the Challenge kit you’ll get on Challenge day?

25. How to Maximize your Points!

26. Awards are given for each sub-category and for overall.
Discussion
How many points are determined without competing with your robot?
What pre-challenge action can you take to get the most Teamwork Skills points?
Or the most Interview Question points?

27. Know the Grader
Rubric
Show that device is structurally sound points.
Team 1 ->
Team 2 ->
Which team is more likely to get points?

28. Sketching is a way of communicating ideas

29. Sketching is a cheap and fast prototype, a simple way to explore new ideas.
Fast way to explore options
You could cut and glue everything to explore your mechanism idea, but that takes a lot of time. If you sketch it first

30. Examples of tasks Read project rules Research clamping mechanisms
Research rotating mechanisms
Sketch ideas for clamping mechanisms
Build prototype mechanisms
Sketch whole robot design
Build whole robot
Practice challenge activity
Read portfolio scoring rubric
Generate final sketches of design for portfolio
Write a description of the principles of strength and stability
Write an explanation of the chosen location of your syringes
Have writing reviewed by a mentor
Assemble all portfolio elements into a final report

31. Identify concrete tasks and milestones
Read rules and scoring rubrics
Build prototype rotating mechanism
Have draft portfolio reviewed by a mentor
Milestone:
Assemble writings and sketches into final portfolio
Milestone:
Finalize robot design
Research clamping mechanisms
Tasks
Remember, as Ben said, you don’t have to bring a robot to the competition in 50 days. Can anyone tell me what you have to bring? Portfolio. It’s a lot of points.
the first thing to do is identify what tasks you will have to perform. These are things like xyz. Additionally you identify major milestones. It is important to remember that even though you will be building robots to learn about them, you will not be building one for the competition day. Can anyone tell me what deliverable you will be bringing on competition day? Portfolio. So lay out tasks for portfolio as well.

32. What you should be doing right now
Identify 3 tasks or milestones
Lay out the schedule
Choose dates for your milestones
Go do it

33. Watch videos from previous Fluid Power Challenges on the web at: or google: “Fluid Power Challenge” Successful products are always made by carefully researching existing products.
Just talk about value of iterative prototyping. Don’t need to use the syringes, just get used to working with the materials. Know its limits so your sketches have more value.