Revolving Chamber Paintball Marker
Proposal
Engineering Innovations, Inc.
Submitted by:
Saluki Engineering Company
F09-22-PAINTGUN
Team Members:
Justin Wood (MGR) ME
Ahmed Soueidan ME
Cory Mason ME
Tyler Graff EE
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
November 19th, 2009
Saluki Engineering Company
Southern Illinois University Carbondale
College of Engineering – Mailcode 6603
Carbondale, IL 62901-6604
Woodj87@siu.edu
Dr. A. Weston
Department of Mechanical Engineering and Energy Processes
Southern Illinois University Carbondale
Carbondale, IL, 62901-6603
(618) 453Dear Dr. A. Weston,
On September 22, 2009, we received your proposal request for design of the Revolving Chamber
Paintball Marker. Our Company has assembled an impressive and competitive proposal for your
project, which you will find attached to this letter. We would like to thank you for giving us the
opportunity to bid on this project.
The Revolving Chamber Paintball Marker’s main design purpose is to increase functionality and
longevity of the marker. Common markers operate with the critical parts of operation in motion.
This motion causes wear reduced lifespan. The RC Marker will incorporate a simplified design,
removing motion from several critical pieces to one piece. In addition, the modification will
reduce kick caused by the moving parts increasing accuracy.
The design of the Paintball marker involves an intricate combination of mechanical, fluid, and
electrical systems. The main component, the revolving chamber, is the heart of the marker. This
piece will interact with all other components. Thorough testing will be done to ensure target
performance and operation is obtained. Many of the standards expected for this marker are
consistent with paintball tournament regulations.
We are confident that our proposal will more than satisfy your requirements detailed in your
request for the proposal. Thank you again for the opportunity to bid on this project. We are
looking forward to working with your organization. If you need any further information, please
contact me at the given email address above.
Sincerely,
Justin A Wood
Project Manager, Revolving Chamber Paintball Marker Design
Saluki Engineering Company
I
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Executive Summary
The Saluki Engineering Company group #F09-22 proposes to build Revolving chamber paintball
marker in response to the request for proposal submitted by Engineering Innovations Inc. The
Revolving Cylinder Paintball Marker is to have a component that opens and closes the chamber
with a circular motion. The function of the new piece is to replace the standard bolt in modern
markers today. Due to the wide variety of uses for paintball markers, the regulation followed for
the competition of the RC marker will be consistent with the rules and regulations that govern
tournament play. This will ensure the marker is functional and operates as a higher standard.
To be able to successfully build a functional model and ensure that it will operate at a level
consistent with other markers at similar levels, a thorough study must be undertaken to
understand similar systems and their operation. The understanding of similar system will allow
the engineer to make design choices consistent with other paintball markers on the market. Highend markers usually have an upgrade feature available. The marker has parts that are made,
either by the paintball markers manufacturer or by other companies, to enhance the performance
of the marker. This also allows the user to fully customize their marker with their unique style.
An understanding of what other parts are commonly upgraded and how other markers work will
allow the design of the RC marker to be upgradeable and competitive with other markers at a
similar level.
The marker will first be broken down into subsystem to be studied, designed, and studied. The
subsystems include a cylinder subsystem, motor subsystem, fluid subsystem, and an electrical
II
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
subsystem. The cylinder subsystem is the central component to the marker and its operation. The
motor subsystem includes the motor selection and analysis of requirements for operation. The
fluid subsystem includes the flow of the compressed gas though the marker until it reaches the
cylinder. Finally, the electrical subsystem includes all electronic components and signal
processing.
The initial cost analysis yields a total of $183.20 dollars to build the project. This total is based
on current designs and parts required. A number of parts utilized for the marker operation are on
hand and ready to be used. Other parts will have to be order or machined after engineering
calculations are performed to produce minimum requirements for operation. The price total is
subject to change as the design may change later in analysis. If the project is awarded to Saluki
Engineering Company, the design and build process will start January 18th, 2010.
III
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Non-Disclosure Statement
RESTRICTION ON DISCLOSURE OF INFORMATION
The information provided in or for this proposal is confidential and proprietary property of the
Saluki Engineering Company of Carbondale, Illinois, USA. Such information may be used solely
by the party to whom the proposal has been submitted by the Saluki Engineering Company and
solely for the purpose of evaluating this proposal. The submittal of this proposal confers no right
in, or license to use, or right to disclose to others for any purpose, the subject matter, or such
information or data, nor confers the right to reproduce or offer such information for sale. All
drawings, specifications, and other writings supplied with this proposal are to be returned to
Saluki Engineering Company promptly upon request. The use of this information, other than for
the purpose of evaluating this proposal, is subject to the terms of agreement under which services
are to be performed pursuant to this proposal.
IV
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Table of Contents
Introduction………………………………………………………………………………………..1
Literature Review…………………………………………………………………………….....2-5
Design Basis ………………………………………………………………………………………6
Table 2.1: Design Basis…………………………………………………………………...6
Project Description………………………………………………………………….…………7-14
Figure 3.1: Project Flow Chart……………………………………………………………7
Figure 3.2: Marker Components suppressing the body…………………………………..7
Figure 3.3: Detailed Flow Chart……………………………….………………………….8
Figure 3.4: Trigger & Photo Sensor……………………………………………………….9
Figure 3.5: Basic Cylinder Design……………………………………………………….10
Figure 3.6: Front of Cylinder………………………………………………………….....10
Figure 3.7: Mid-section of Cylinder……………………………………………………..11
Figure 3.8: Rear Section of Cylinder…………………………………………………….11
Figure 3.9: Back side of cylinder………………………………………………………...12
Figure 3.10: Complete Cylinder System…………………………………………………13
Figure 3.11: Fluid System………………………………………………………………..14
Project Organization.…………………………………………………………………….……....16
Figure 4.1: Project Organization Chart…………………………………………………..16
Action Item List …………………………………………………………………………………17
Table 5.1: Action Item List………………………………………………………………17
V
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Timeline………………………………………………………………………………………….18
Table 6.1: Timeline………………………………………………………………………18
List of Resources & Calculations.……………………………………………………………….19
Cost Analysis…………………………………………………………………………………….20
Table 7.1: Cost Analysis…………………………………………………………………20
References.…………………………………………………………………………………........21
Appendix A…………………………………………………………………………………...22-26
Resumes………………………………………………………………………………23-26
Appendix B………………………………………………………………………...…………….27
Request for Proposal
ASTM Standard F2272.08
Tournament Rules & Regulations
VI
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Tables & Figures
Table 2.1: Design Basis …………………………………………………………………………..6
Table 5.1: Action Item List………………………………………………………………………17
Table 6.1: Timeline………………………………………………………………………………18
Table 7.1: Cost Analysis…………………………………………………………………………20
Figure 3.1: Project Flow Chart……………………………………………………….…………...7
Figure 3.2: Marker Components suppressing the body…………………………….……………7
Figure 3.3: Detailed Flow Chart……………………………………………………..……………8
Figure 3.4: Trigger & Photo Sensor…………………………………………..…..………………9
Figure 3.5: Basic Cylinder Design ……………………………………………..………………..10
Figure 3.6: Front of Cylinder…………………………………………………..………………...10
Figure 3.7: Mid-section of Cylinder……………………………………………………………..11
Figure 3.8: Rear Section of Cylinder………………………………………………..…………...11
Figure 3.9: Back side of cylinder…………………………………………………………….…..12
Figure 3.10: Complete Cylinder System…………………………………………………………13
Figure 3.11: Fluid System………………………………………………………………..………14
Figure 4.1: Project Organization Chart…………………………………………………………..16
VII
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Introduction
The Revolving Chamber Paintball Marker will be designed to give the user a better controlled
firing response over traditional paintball guns, by eliminating several designs common in
markers today. By replacing the common bolt and other critical moving parts inside the marker
with a rotating cylinder, powered by an electric motor, the Revolving Chamber paintball marker
will achieve greater firing stability than current bolt designs. With only one central component
moving for continuous operation, the RC Paintball Marker will reduce problems from multiple
complex systems breaking down over time. A circuit board will be programmed to associate the
firing mechanism of the cylinder and electric motor to the users’ trigger actuation. The trigger
will use a photo interrupter instead of a micro switch or a mechanical system to fire. This system
does not rely on contact for operation, further reducing the chance of system failure. An
electronic motor, initiated by a response from the circuit board to the trigger actuations, will
rotate the cylinder from an open position to a closed position. In the rotation cycle, the cylinder
starts from an open position and moves to a sealed position, allowing a discharge of compressed
gas to project a paintball. Combining all aspects of this design will ensure a more accurate,
functional, and controlled paintball marker.
1
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Literature Review
Traditional paintball markers are designed to fire on the release of a mechanical lever or
electronically controlled switch. The user is responsible for initiating the firing sequence. To
comply with ASTM specifications, existing paintball markers should not accidently discharge
when exposed to a moderate jolt [1]. In addition, all paintball marker designs are to incorporate
a disabling device and clearly marked to indicate safe, fire, off, or on [1]. There are two
categories of markers, increase and decrease force markers. Traditional markers are most
commonly considered to be increase force markers. A hammer striking a valve is an example of
an increased force operation. An example of a decreasing force marker is a marker that operates
by holding back pressurized gas, then releasing it to allow a paintball to be fired [2]. Current
paintball markers can be classified into two categories. Increased force markers operate using a
hammer and valve, while decreased force markers operate without a hammer. A valve is used to
release air through a hole sealed by a poppet and spring. The force of the hammer is used to
compress a spring, enabling a surge of pressurized gas to the bolt. Markers operating without a
hammer use a spool or valve to hold pressure back behind the bolt. When the marker is ready to
fire the spool unseals and releases air behind the paintball. Spool valve markers operate
electronically, via solenoid, or mechanically. Additional generic categories of paintball markers
include mechanical and electronic. A mechanical marker uses mechanical advantage and motion
of parts, such as the trigger, to enable the marker to fire. An electronic marker uses a circuit
board to control the operation of the marker. Using a micro processor, the board will interpret
signals from many inputs throughout the marker to control or enable other functions connected to
the board. Some markers have mechanical operating components and use a circuit board, while
2
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
other electronic markers use the circuit board programming to interpret and control all functions
on the marker. Operations of the marker are turned into an electronic signal to be interpreted and
enabled by actions of the circuit board. The trigger in most electronic markers will contact a
micro switch, relaying to the circuit board when to fire.
Most traditional marker designs enlist delrin as the material for the bolt. Many properties of
delrin, such as small friction coefficient, longevity, machine ability, low density, low cost, and
toughness, make delrin a wise choice of material in the paintball marker industry [3].The bolt of
a paintball marker is used to push the paintball forward in the chamber. The bolt seals the
chamber in preparation for the compressed gas discharge. In a spool and valve marker, the
pressure is contained around part of the bolt and allowed to enter after the bolt is moved. This
part is subject to the most wear of all parts in the marker. It is for this reason that a material with
low friction coefficient and a moderate strength is preferred in paintball markers.
Most high-end paintball markers operate with compressed air. Alternate options include
nitrogen and carbon dioxide. Compressed air is a choice for higher end markers because it
generally produces a constant pressure from the tank. The most commonly used alternative to
compressed air is carbon dioxide. Carbon dioxide is not often used because of a phase change
from liquid to gas that it undergoes from the tank into the marker. Compressed air also resides at
a higher pressure than carbon dioxide. This requires that the tank for compressed air be
constructed out of much stronger materials than the steel commonly used to CO2. One of the
more common tank materials for compressed air is carbon fiber. In addition to needing a stronger
tank, compressed air requires air source regulators. The input air pressure is regulated to comply
with American Society for Testing and Materials, or ASTM, specifications for the muzzle
3
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
velocity of a paintball projectile exiting the barrel [1]. Most regulators on the market are
adjustable, universal and operate from 0-800 psi. A compressed air marker uses anywhere from
one to four pressure regulators throughout the marker. These additional regulators help achieve
consistent pressures at different sections throughout the gun.
Electric motors are preferred for most rotating devices. Some devices are instructed to perform a
specific task with a high level of accuracy. When these tasks are required, a stepper motor and
controller should be considered. Stepper motors have not yet been incorporated in paintball
markers, but are located in most electronic hoppers, also known as force fed hoppers, available
on the market.
Higher end markers are fully customizable. They will come with stock parts but have several
companies that make aftermarket additions to increase performance or visual appeal. The
components already on the markets common to upgrade are items such as the barrel, air source
regulator, tank, trigger, and hopper. All paintball markers which include a barrel must be
packaged with a barrel blocking device [1]. Barrels are designed as a single piece. However,
there are some marker manufactures that offer a two piece barrel for sizing changes. Size
changes may be needed to adjust to a more precise paintball used in the marker. Air source
regulators and tanks come in all shapes and sizes. The trigger is often chosen as a custom
modification. Each player will find a different comfort level in a trigger. In addition to comfort
and shape, spring stiffness can affect the operation of the gun. The trigger system is most often
modified in electronic markers, due to the trigger’s sole operation of completing a circuit. The
hopper choice often greatly effects the gun operation. Electronic hoppers, also known as force
fed hoppers, force paintballs into the chamber. This action reduces the time it takes for the next
4
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
paintball to enter the chamber and await firing. Gravity fed hoppers use only gravity to move the
next paintball into the chamber. Additional constraints on the marker design are that all markers
must pass the impact test. A trigger guard must completely enclose the trigger area and be wider
than the trigger. There can be no more than 38 mm of space from any point on the face of the
trigger to the trigger guard, and no more than 13 mm from the lowest point of the trigger to the
trigger guard [1].
The Revolving Cylinder Paintball Marker differs from previous designs based on the facts that
no other markers use a revolving cylinder to open and close the chamber for firing operation.
The designed parts on the RC marker, compared to existing systems, are the circuit board and
cylinder. A motor will be used to rotate the cylinder from the opened to closed positions. Motor
selection for the marker will be based on the required torque, voltage, availability, and size
constraints. The circuit board on the marker is similar to the design of other markers based on the
ability to read an input and create an output. The design portion of the circuit board is that it
needs to be integrated with the motor and gain the ability to control the motor position. The RC
marker will be designed to use a .50 caliber paintball. There is a current shift to making a .50
caliber paintball the standard in tournament play. The current standard is .689 caliber.
Components on the marker, such as the barrel and hopper, will be the same as those used on
other markers on the market. Codes and standards listed above also constrain the RC Marker
design.
5
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Design Basis
The basis for the design is shown in table 2.1. Due to the marker being designed for tournament
use, most of the regulations on the marker will be from the updated tournament rules and
regulations.
Request for Proposal (RFP)
22-Sept-09
SEC RFP Project Definition – Attachment 1
22-Sept-09
SEC RFP Design Report Deliverables Checklist – Attachment 2
22-Sept-09
SEC RFP Tentative Schedule– Attachment 3
22-Sept-09
ASTM Standards
22-Sept-09
Tournament Rules and Regulations
22-Sept-09
Proposal for Project F09-22-PAINTGUN
19-Nov-09
Table 2.1:
Design Basis
6
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Project Description
List of Subsystems:




Cylinder Subsystem
Motor Subsystem
Electrical Subsystem
Fluid Subsystem
Figure 3.1
Project Flow Chart
As can be seen from figure 3.1, most of the system being designed focuses on the cylinder. An
effort was made to make one main subsystem. The idea is that all other systems interact
primarily with the main subsystem. The cylinder is the main subsystem. Every other subsystem
either interacts directly or pulls data from the cylinder.
System Interaction
The central component of the system is the cylinder. All position sensors will be based on the
cylinder position. Figure 3.2 shows the cylinder subsystem with all attachments. Figure 3.3 is an
expanded flow chart for the entire system.
Figure 3.2
Marker components suppressing the body
7
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Figure 3.3
Detailed Flow Chart
The cylinder will have a motor, photo interrupter, two ball bearings, break beam eyes, liquid ring
material, and a detent. The photo interrupter will be attached to the circuit board to give
information about the cylinder. The break beam eyes will be an input into the circuit board. The
function of the break beam eyes will be to tell the circuit board when a ball has successfully
entered the chamber and is ready to be fired. The motor is connected to the rear of the cylinder
by a shaft. The motor will be connected to the circuit board as an output. The fluid subsystem is
indirectly connected to the cylinder by a section of the marker under the cylinder simply made to
store pressure. The pressure will be discharged when the cylinder rotates past the sealing liquid
ring, allowing the pressure to escape though the hold drilled through the center of the cylinder.
8
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
The central hole is drilled directly behind the pink side of the paintball. The electrical and motor
subsystems interact with all other subsystems except the fluid system. The whole process starts
after the ball is loaded and the trigger is pulled. After the trigger is pulled far enough back to
interrupt the photo sensor, shown in figure 3.5, the circuit board will receive a signal.
Figure 3.4
Trigger and Photo Sensor
The signal is interpreted and turned into a response initiating the motor operation. The motor
operation creates a torque on the cylinder. This torque causes the rotation in the cylinder,
allowing the chamber to be closed. During the rotation, the compressed gas is discharged though
the hole in the cylinder. The discharge is used to propel the paintball out of the marker barrel.
The photo sensor on the cylinder is used to tell the circuit board where to stop the motor. The
cylinder is now ready for another paintball, and to complete the cycle again.
Cylinder subsystem
The cylinder subsystem is the most intricate and precise system in the marker. A cylinder will be
manufactured from delrin. Three holes will need to be drilled from the cylinder; the first will
allow a paintball to be loaded. The second will allow compressed gas into the chamber, and the
third will allow the paintball to be projected out the front barrel. The cylinder will be attached
by a shaft to the electric motor. When the cylinder is at rest, a paintball will be loaded inside
through the first hole. After a paintball is loaded, breaking the break beam eyes, an electric
9
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
stepper motor will be responsible for rotating the cylinder clockwise 360 degrees. The photo
sensor on the cylinder will be used to tell the circuit board when to stop the motor, so the
cylinder is ready for another paintball to be loaded and fired. After approximately 180 degrees of
rotation, the cylinder will close the breach and allow compressed air to enter the second hole. Air
travels from the second hole to the third hole where a paintball lies initially at rest with a barrel
attached to the front of the housing. When the paintball is fired, the desired muzzle velocity will
be 280-300 feet per second.
Figure 3.6 shows the basic design of the cylinder. Figure 3.7 shows the front of the cylinder. The
front of the cylinder has one main hole behind the paintball. This is where the compressed gas
meets the paintball. The hole though the side of the cylinder front is the theoretical position of
the break beam eyes to check the location of the paintball. The rectangular cut in the cylinder is
for the detent. The detent is used to stop the paintball from rolling forward before the firing
sequence is initiated.
Figure 3.5 & 3.6
Basic Cylinder Design & Front of Cylinder
Figure 3.8 illustrates the position of the hole that allows the compressed gas contact with the
paintball. The top hole allows air to enter through the cylinder and to the backside of the
10
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
paintball during the firing sequence. A liquid seal will be dispersed into the slots and is
responsible for sealing the bottom air hole at rest. Also two ball bearings will ride on each side
of the hole on the cylinder.
Figure 3.7
Mid-section of cylinder
Figure 3.9 shows the rear section of the cylinder where one of the IR photo interrupters on the
marker is located. The IR photo interrupter is placed on the underside of the cylinder housing
and is aligned to the cut-slot on the middle ring to switch the stepper motor off after one rotation.
The last ring is designed to fix the cylinder to the housing and the motor shaft fixes cylinder.
Figure 3.8
Rear section of cylinder
11
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Figure 3.10 shows the shaft connection to the cylinder. The motor shaft is inserted in the rear slot
on the rear end of the rotating cylinder. There is a notch to stop slipping of the shaft inside the
cylinder.
Figure 3.9
Back side of the cylinder
Figure 3.11 shows a simplified version of the subsystem put together. The revolving cylinder
subsystem includes a cylinder colored orange, two ball bearings colored silver, one set of break
beam electronic eyes colored green, one ball detent colored blue, one IR photo interrupter switch
colored purple, and one stepper motor colored black.
12
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Figure 3.10
Completed Cylinder System
Motor Subsystem
The motor subsystem is simple. The motor, illustrated in figure 3.11, has only an input from the
circuit board. The motor will respond to a current applied from the circuit board. The circuit
board will control its functioning. The motor provides the rotation for the cylinder. The stepper
motor for this project will be off-the-shelf. The motor will be selected based on the required
torque and the available power. This motor must be capable of completing around 20 revolutions
per second while under load. Housing will be fabricated for the motor to protect it from moisture
and contaminants, like dirt. This housing will also serve as a heat sink to draw heat away from
the motor. Upon effectiveness calculations, it will be determined whether or not fins are needed
or even practical to aid in removing heat.
13
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Fluid Subsystem
The fluid subsystem includes several pieces. The main complexity in the fluid system is ensuring
the components can handle the pressure they experience. Figure 3.12 shows the basis for the
fluid system.
Figure 3.11
Fluid Subsystem
Parts included in this figure are the air adapter, tubing, pressure regulator, and gauge. The black
piece is the pressure regulator. The pressure regulator will take the pressure from the tank
regulator down to the pressure required to propel the paintball at the desire velocity. The gauge is
a measurement device to ensure the proper pressure is obtained. The air adapter is used to open
or close the tank and to direct air into the piping. The parts not shown in the figure are the tank
and portion of the body that holds the pressure until discharge. After the trigger is pulled, the
motor will start to rotate the cylinder until the liquid ring stops sealing the discharge hole in the
body. Once the hold in the midsection of the cylinder is exposed, the compressed gas will
discharge through the cylinder and propel the paintball out of the barrel. The fluid system is
basically an open source of compressed gas.
14
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Electrical Subsystem
The electrical subsystem of the paintball gun has a simple design. A 9V DC battery will supply
power to the marker. The circuit board’s main component will be a microprocessor. The circuit
board will have several inputs to interpret. The first input is the break beam eyes. This device
will tell the circuit board when the ball has reached a position allowable for firing operation.
Next the user will push the trigger, which is equipped with a photo interrupter. The switch will
break the signal, telling the circuit board to carry out the firing sequence. The board should be
programmed in such a way that does not allow firing operation to start without the break beams
eyes signal blocked first. After the firing operation has begun, there should be a signal sent to the
motor to operate. The IR photo interrupter on the cylinder should tell the board when the motor
has made a 360 degree rotation and to stop at that point. This point is consistent with the cylinder
ready and loading a new paintball into the chamber. It should be noted that there should be one
last input into the circuit board. A safety button should disable the firing operation until
deactivated. A breadboard will be used for signal tests and programming. After design, an actual
printed circuit board can be made to fit our paintball gun design. The circuit board should be
small enough to fit inside the handle of the marker.
15
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Project Organization Chart
Figure 4.1
Project Organization Chart
16
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Action Item Lists
Team Members:
Justin Wood
ME
Tyler Graff
EE
Cory Mason
ME
Assigned
To
JW
1/26
Adjusted
Due
-
Design Motor Subsystem
Design Fluid Subsystem
Design Electrical Subsystem
Design Cylinder Subsystem
CM
1/28
-
0%
JW
1/28
-
0%
TG
1/28
-
0%
AS
1/28
-
0%
Analysis of Motor System
Analysis of Fluid System
CM
-
0%
-
0%
Analysis of Electrical System
Analysis of Cylinder System
Microprocessor Signal Test
Fabrication
Assemble and Test
Test and Debug
Design Report
Demonstration
Design Oral Presentation
Poster
TG
-
0%
AS
2/11
2/11
2/11
2/11
-
0%
TG
2/11
-
0%
CM
3/11
-
0%
JW
3/11
-
0%
AS
3/25
-
0%
JW
4/27
-
0%
TG
4/29
-
0%
CM
5/4
-
0%
AS
5/4
-
0%
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
PM ME
Ahmed Soueidan
Activity
Team Memo
JW
Due
Status
0%
Table 5.1
Action Item List
17
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Team Timeline
Week 16
Week 15
Week 14
Week 13
Week 12
Week 11
Week 10
Week 9
Week 8
Week 7
Week 6
Week 5
Week 4
Week 3
Week 2
Week 1
Activity
Design Subsystem
Analysis of Subsystems
Microprocessor Signal Test
Fabrication
Assemble and Test
Test and Debug
Design Review
Progress Report
Design Review Orals
Design Report
Design Oral Presentations
Demonstration
Poster
Table 6.1
Team Timeline
18
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
List of Resources & Calculations
To complete this project, the team will need a set of resources made available for use. In
addition, the calculations that need to be performed to make correct engineering adjustments to
the project will be listed.
Electrical subsystem



Software to program the microcontroller
A solder gun for connecting components to the circuit board for testing
A Breadboard and testing area for signal test.

Circuit analysis and power usage calculations
Cylinder Subsystem



CNC Machines/Lathes
Milling Equipment
Programming technology



Stress & Strain Analysis
Friction Analysis
Acceptable Pressure Calculations
Motor Subsystem



CNC Machines/Lathes
Milling equipment
Programming technology


Load Analysis
Power Calculations
Fluid Subsystem
 Programming for Fluid Analysis
 Pressure Calculations
 Wall Thickness Calculations
19
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Cost Analysis
Part
Quantity
Price
Total
PIC Microcontroller
1
$5.00
$10.00
Printed Circuit Board
1
$25.00
$25.00
Wire
bulk
$10.00
$10.00
Resistors
~10
$1.00
$10.00
Solder wire
1 roll
$10.00
$10.00
Motor
1
$27.10
$27.10
Delrin Rod
1
$7.41
$7.41
Delrin Block
1
$40.69
$40.69
Ball Bearings
2
$10.00
$10.00
Electronics Break Beam Eyes
1 set
$29.99
$29.00
IR Photo Interrupter
2
$2.00
$4.00
Tank
On Hand
$0.00
Air Regulator
On Hand
$0.00
Piping
On Hand
$0.00
Air Adapter
On Hand
$0.00
Gauge
On Hand
$0.00
Hopper
On Hand
$0.00
Total
$183.20
Figure 7.1
Cost Analysis
20
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
References
[1] Standard Specification for Paintball Markers, F2272.08, 2009
[2] DuBuc, Andrew. (21 Oct 2009). Technical Website.
<http://www.zdspb.com/tech/misc/markers_index.html>
[3] Plastic Products Inc. (21 Oct 2009). Database Website. <http://www.plasticproducts.com/spec.htm>
21
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Appendix A
22
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Justin Wood
(618)980-9985
737 E Park St. Carbondale IL 62901
woodj87@siu.edu
Professional Profile
Mechanical Engineering (Aug 2008 - May 2010)
 Productive Leader
 Outstanding Social and Communication
Skills

Senior



Skilled in AutoCAD & Inventor
Skilled with Microsoft Office
Experienced in computer repair and
software maintenance
Experienced in C++ Programming
Professional Accomplishments
Education
Southern Illinois University of Carbondale, (Aug 2008-May 2010)
 Dean’s List Summer 09
 AISIN Scholarship award recipient
 Member of SIU Chapter of American Society of Mechanical Engineers
 Designing new prototype of paintball marker
Southwestern Illinois College, (Aug 2006-May 2008)
 Honor Roll Student
 Tutored at SWIC Success Center and received Level One CRLA Certification
 Recipient of Westside Optimist Club Scholarship
 Taken all Physics and Calculus courses at SWIC
Work
Computer Support Center, Technician, SIUC, (AUG 09-Current)
 Undergraduate Computer Repair Technician
Scott Air Force Base Burger King, (Feb 07-Aug 08)
 Worked minimum of 34 hours while attending SWIC full time
 Promoted to Supervisor in only 8 months from start date
 Received recommendation of promotion to manager after a year and a half, transfer to
SIUC instead
Community Service
Parkview Church of the Nazarene, (Jan 1994-Aug 2006)
 Member at Parkview Church of the Nazarene, Fairview Heights IL
 Elected by church to serve as a representative in the Nazarene Youth International


(2003-2004)
Assisted in outreach programs for community
Regular volunteer for cleaning church grounds and church chores
23
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Cory J. Mason
Permanent Address
3359 Maplewood Ave.
Decatur, IL 62521
(217) 620.2518
cmace88@siu.edu
Objective
A rewarding and challenging entry-level position in a well reputed company that offers
varied job responsibilities in the field of mechanical engineering and will utilize my
tactical as well as technological abilities.
Education
Southern Illinois University Carbondale
Bachelor of Science, May 2010
Major: Mechanical Engineering
Grade Point Average: 3.505/4.0
Work Experience
Engineering Intern
Tate & Lyle North America, Decatur, IL (Summer 2009)



Revised Piping and Instrumentation Diagrams in AutoCAD
Created and revised preventative maintenance procedures for industrial machinery
Created purchasing requisitions in SAP
Engineering Intern
Tate & Lyle North America, Decatur, IL (Summer 2008)



Facilitated the maintenance of industrial machinery
Worked as part of a team to perform necessary maintenance to plant machinery
Refined the standard operating procedures for lubrication plant-wide
Worked in both Microsoft Word and Excel
Honors
Deans List (2006 and 2008)
Activities & Membership
President
SIUC Triathlon Club, Carbondale, IL (Fall 2008-Spring 2010)


Organized and lead club meetings
Maintained the club’s website
ASME Member (Since 2006)
24
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Tyler Graff
138 Johnson Road  Murphysboro, IL
 (618)-201-4469  tgraff88@siu.edu
Targeting Entry-Level Position

Upcoming Southern Illinois University Carbondale graduate.

Consistently recognized for trouble shooting skills and cost-effectively resolve challenging
issues.

Quickly learn and master new technology; equally successful in both team and self-directed
settings.

Thrive in an environment that encourages innovation, collaboration, teamwork, problemsolving and customer satisfaction.
EDUCATION
Southern Illinois University Carbondale
Bachelor of Science
Degree expected 5/10
Electrical Engineering
EXPERIENCE
Production Technician
CherCo SilkScreens Inc.
2005
to Present

Duties include scheduling production to meet customer’s critical ship dates and ensuring
that all quality standards are maintained.

Monitor employees to ensure that time is managed efficiently.

Work closely with the owner on strategic planning of future growth including labor,
equipment, and materials.

Team Leader: Believe in leading by example.
Gas Painter
Ameren CIPS
Summer 2008

Maintained gas meters that were corroded and rusted to prevent gas leakage.
SKILLS
MATLAB PSPICE XILINX MICROSOFT OFFICE SUITE
25
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Ahmed Y. Soueidan
429 Hillcastle Road
Columbia, IL 62236
618-281-4428
Ays9065@hotmail.com
Skills


Microsoft Word, Microsoft Excel, Mathematica, Autocad design, C++ Programming
Built personal computer
Education
Southern Illinois University - Carbondale
Bachelors degree in Mechanical Engineering
Southwestern Illinois College
Associate of Science degree
Carbondale, IL
May, 2010
Belleville, IL
May, 2006 - 2008
Experience
Barnes-Jewish Hospital
Saint Louis, MO
Orderly
May, 2007 - August, 2008
 Transported high cardiac risk patients to the Cardiovascular Procedure Center
 Connected patients to health vital machines
Edward Jones Dome
Usher
 Responsible for seating guests and overlooking the code of conduct
Home Town Buffet
Line Server
 Supplied the buffet with food
 Cleaned up behind customers
Saint Louis, MO
January 2006 - April 2007
Saint Louis, MO
May 2005 - March 2006
Academic Achievements
 ASME (American Society of Mechanical Engineers)
 Member of Dean's List
 GPA: 3.83/4.00
 AISIN Scholarship recipient
26
Saluki Engineering Company
F09-22-PAINTGUN
Southern Illinois University, Carbondale, IL
Appendix B
27