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 ?