Automated Golf Ball Teeing SystemMr. Tee - The Automated Golf Buddy

Jeremy Woods Mike Seyboth Tim Walker Tomas Krones

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Mr.Tee - Automated Golf Buddy, an automated golf ball teeing system,

automatically replaces golf ball onto tee.

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Why automate the process?

Reducing the time spent in between shots could increase revenues for the driving range.

Makes the game more accessible to the disabled, elderly people, and obese.

Jeremy Woods

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Quantitative Requirements

Maximum 30 second ball replacement cycle time. A cycle is from the moment the system detects a ball’s absence until the system is ready for the player to hit the next golf ball.

Places golf ball on the tee 95% of the ball placement attempts.

Detects the presence of the golf ball on the tee 95% of the time.

Jeremy Woods

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Qualitative Requirements

Electrical power source.

System will operate with wet golf balls.

Machine on/off switch.

In the case of a ball detection failure, a reset interface is available to restart the system.

System is for use with a standard golf ball.

Jeremy Woods

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Above Ground vs. Underground

Drastically reduced liability concerns for the customer.

Portability.

Simpler installation.

Less product delivery costs.

Easier to set up for left handed golfers.

Mike Seyboth

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Final Design Solution

Above ground device.

On/off and reset switches implemented as user interfaces.

Ball detection sensors used for full automation.

Chosen concept is tube delivery system.

Stepper motor allows for rapid replacement of ball ontotee.

Mike Seyboth

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Design Team

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Stepper Motor Calculations

2

2

2

0.0438 *

,total tube ball

tube tube

ball ball cg

I I I kg m

where

I m r

I m l

Inertia…

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Stepper Motor Calculations cont.

max

2*1.57

sec

,

2

2sec

f

f

f

f

rad

t

where

t

maxmax 2

max

1.57sec

,

1sec

a

fa f

rad

t

where

t t

Based on a triangular speed curve…

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Stepper Motor Calculations cont.

Torque…

max

0.931 *

,

total I g

I total

g tube cg

N m

where

I

m l g

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Stepper Motor Calculations cont.

Stepper motor selection - IDC S22

•Holding torque =•Rotor inertia =

5 20.71 *2.34 10 *

N mkg m

Our specifications -

•Torque =•Inertia =

20.931 *0.0438 *

N mkg m

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Stepper Motor Calculations cont.

IDC 16:1 Right angle planetary gear head2

12 1

2

*N

X XN

Required gear ratio of 1.145:1

Inertia ratio is reduced to 7.3:1

Tim Walker

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Circuit Design

Micro Processor

Tee Golf Ball Sensor

Hopper Golf Ball Sensor

Reset Switch

Motor Control

Tomas Krones

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Tomas Krones

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

74HC14

12

R210k

R3220

TCRT5000

14

7

7805/TO92

IN3

OUT1

100u 10u 100n

12V

IN1

GND

GND

Tomas Krones

Hopper Sensor Circuit

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Pseudo codeStart

Tee Sensor

Motor Control

PresentNot Present

Hopper Sensor

Not Present Present

Reset Switch

Not PressedPressed

Tomas Krones

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Budget

Item Expense Source of Funding

Labor    

Mechatronic Engineering (252hr)    

Salary ($35/hr) $8,820 Donated labor (design team)

Benefits (37% of salary) 3,263 Donated labor (design team)

Overhead (40% of salary) 3,528 CSUC

Mechanical Engineering (84hr)    

Salary ($32/hr) $2,688 Donated labor (design team)

Benefits (37% of salary) 995 Donated labor (design team)

Overhead (40% of salary) 1,075 CSUC

Fabrication (4hr)    

Salary ($35/hr) $140 Donated labor (design team)

Benefits (37% of salary) 52 Donated labor (design team)

Overhead (40% of salary) 56 CSUC

Subtotal $20,617  

Parts, materials, equipment $72 Design team members

Total $20,689  

Jeremy Woods

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Budget

Direct CostParts $400Materials $100Design team will assemble

Indirect CostsSubcontract $100Presentation $50Supplies $50

Contingency $300

Total $1,000

Funding Source:Tomas Krones $250Mike Seyboth $250Tim Walker $250Jeremy Woods $250

Total $1,000

Jeremy Woods

Automated Golf Ball Teeing System Mr. Tee - The Automated Golf Buddy

Summary

Detailed assembly drawings are almost complete.

Design calculations show 7 second cycle time.

.

Sensor specs indicate ball will be detected on tee.

Ready to begin fabrication of design.

Functional prototype successfully places ball onto tee.

Tomas Krones

Automated Golf Ball Teeing SystemMr. Tee - The Automated Golf Buddy

Jeremy Woods Mike Seyboth Tim Walker Tomas Krones

Questions ?