1. California State University, Northridge PROFESSOR: HAMADE, JAY
SPRING 2013
MSE 618
SIX SIGMA
CATAPULT PROJECT PRESENTATION
Team Members
aLRUBAYAn, fawaz
ALSUWAIDI, HAMAD
Ayvazyan, David
KALANTARI, MAHRAM
Gerson, Segovia

2. AGENDA Define Phase Measure Phase Analyze Phase Improve Phase
Control Phase
Q-A

3. Define Phase
Project charter
Sipoc analysis
Voc analysis

4. Problem Statement
In the beginning of the semester of Spring 2013, about 45% of the CSUN Students at Northridge university using the Catapult for ball toss complained that the distance travelled by the ball doesn’t achieve their request specification of 6’ shooting range +/- 2 inches. Results show that the profit reduced in comparison with the Fall of 2012 by 15% according to the customers service.
What is wrong? CSUN Students complain.
Where it happened? Northridge University.
When it occurred? Beginning of the semester of Spring 2013.
To what extent?
45% of the CSUN Students, request specification range +/- 2 inches profit reduced in comparison with the Fall 2012 by 15%.

5. Goal Statement
1. Develop a catapult that will meet client expectation of accuracy. (+/- 2 inch at 6’ target projection length)
2. Reduce the costumers complaint by 35% (from 45% to 10%) by the end of Spring 2013.
2. Reduce the error of no larger than +/- 2 inches.
3. Increase the revenue by 10% by the end of Spring 2013.

6. Schedule, Roles and Responsabilities
Project Start Date: February 19, 2013 Project End Date: May 07, 2013
Sponsor:
David K. Ayvazyan
Project Manager:
Gerson A. Segovia
Team Members:
Fawaz Alrubayan
Hamad Alsuwaidi
Mahram Kalantari

7. SIPOC Diagram- Catapult Project
Suppliers
Inputs
Process
Outputs
Customers
Requirements
Home Depot
Lowe’s
Ace
Anawalt Lumber
Wood
Glue
Screws
Pins
Rubber band
Safety glasses
Tape
Arms
Cap
Beautiful & accurate catapult
Prof. Hamade
Kids
Students
Shoot 6 feet
Great Quality
Safety
Mount sides on base
Put in fixed arm
Machine variable arm
Install pins and cap
Install rubber band

8. Voice of Customer -Catapult(process output) -Professor & students
-Reactive Voice
-Professor’s feedback
-Proactive Voice
-Direct customer observation
-ask customer personally what they want

9. Measure Phase

10. Primary & Seconday Metrics
Secondary Metric
Our Secondary metric is the height which we locate our catapult as it would have great impact on the distance our object could go.
Primary Metric
Our primary metric is the distance between the catapult and the place our object hits the ground

11. Gage R&R ANOVA Output Total Gage R&R =8.05% Ideal (< 10%)
Acceptable (< 30%)
Number of Distinct Categories=3
Recommended (≥ 5)

12. Gage R&R-Graphical Output

13. Normality Test

14. Capability Analysis
Ppk = (0.46) < 1.33
Sigma level =
0.46*3= 1.38

15. Analyze Phase

16. Base Sides Detailed Process Map Input Wood Operator Blueprint Tools
Output
Base
Input
Wood
Glue
Operator
Tools
Output
Base w/side

17. Detailed Process Map(Continued)
Arms
Accessories
Input
Wood
Glue
Bolts
Tools
Variable Fit Arm
Output
Base with
Side and arms
Input
Rubber Band
Cups
Pins
Output
Finished catapult

20. Improve Phase

21. INTERACTION PLOT FOR RESULTS
•This Graph helps us look at the important relations between the 3 sources of error
•It shows us how big each effect is
•In order to get highest yield from our experiment, angle should be set to point on the base 4, position of the stationary arm pin should be set to 3 and position of the pin on the moving arm to 3

22. NORMAL PLOT OF THE EFFECTS
The Normal Plot and Pareto Chart shows
Which effects influence the yield?
The graph shows all the points are outside.

23. MAIN EFFECTS PLOT FOR RESULTS
•The Plot shows the effects of changing the angle and the positions of the pins on the standing and moving arm
•as we can see that the Positions of the Pins on the Stationary Arm has the major effect on achieving the target spec and then the Position of the Pin on Moving Arm

24. CUBE PLOT FOR RESULT
•From The Cube Plot, in order To Get The Desired requirement Of The Distance i.e. 72 inches,
-The Angle should be set to point 4
-The Position of the Pin on the Fixed Arm should be between 1 & 3
-The Position of the Pin on the Stationary Arm should also be at 2

25. OPTIMIZATION PLOT
•As the name suggest, the plot gives the combination of effects for optimum efficiency, i.e. to meet the desired specifications
•In our case, the Angles should be set to point 4
 The Position of the Pin on the Fixed Arm should be at point
 The Position of the Pin on the Stationary Arm should be at point

26. Control Phase

27. Normality Test

28. Xbar-R Chart

29. I-MR Chart

30. Conclusion