Adonis Pimienta-Penalver MAE377 Final Project

8/14/2019 Adonis Pimienta-Penalver MAE377 Final Project

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Final Project

Adonis Pimienta-Penalver

3270-5895

11/12/2009

MAE 377

University at Buffalo


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1 Contents

2 Introduction..........................................................................................................3

3 Problem Statement..............................................................................................3

4 Design Goals........................................................................................................4

5 Market Survey/Product Descriptions....................................................................4

6 Project Management............................................................................................6

6.1 Gantt chart.....................................................................................................6

6.2 Alternative Designs (Hand Sketches).............................................................7

6.3 Analysis of Alternative Designs....................................................................10

6.4 Decision Making...........................................................................................11

7 CAD Models........................................................................................................14

7.1 Parts.............................................................................................................14

7.2 Assembly.....................................................................................................17

7.3 Rendering....................................................................................................20

7.4 Animations...................................................................................................28

8 Manufacturing Analysis......................................................................................29

8.1 BOM/Drawings.............................................................................................29

8.2 Cost Analysis................................................................................................36

9 Service Analysis.................................................................................................38

9.1 Product Manual............................................................................................38

9.2 Product Life Analysis....................................................................................41

10 Conclusion.......................................................................................................41

11 References......................................................................................................43

References

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2 Introduction

The product I will inspect for the final design project of our MAE 377 class is

the gamepad/joystick device. This device is used as an advanced controller with

several input buttons to provide better controlling capabilities for certain games or

simulators. The success of my work will be measured by if I can design a new

product with the ability to provide users with greater controlling capabilities and

more versatility in terms of being adaptable to different types of games. I will

accomplish this task by researching different present models and their respective

customer satisfaction, pros and cons; to be able to obtain an idea of what the

market is asking for, and supply a solution to the general demand. The design will

feature a more functionality-based approach because while many companies have

products that excel at their respective domains, there are only a few that are

directed to provide the gamer with a complete package to fit every type of game. I

will show the prototype model to my peers in order to get feedback on its user

friendliness and market appeal. The worth of my project will be determined by how

much I am able to adapt the design to the needs of the users.

3 Problem Statement

Gaming in todays world isnt simply a matter of having a console and a few

game cartridges; as time has passed, users have grown more demanding of

increased control and user-friendliness of these interfaces; sometimes, until the

point of turning gaming into something else but a hobby anymore.

This presentation is the result of extensive survey and understanding of the

needs of consumers in the current gaming world in terms of user friendliness and

aesthetical appeal of the interfaces used to input commands into the games they

play.

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4 Design Goals

My objective is to create a new product, to address the needs of gamers interms of user-friendliness and overall ergonomic design.

I will focus on several parameters to complete my design, these will be crucial in

guaranteeing the overall value of my final product in the hypothetical case it

becomes available in the market. These parameters are, primarily: Versatility

(ability to adapt to different gaming experiences), user friendliness, durability, cost

and appearance.

5 Market Survey/Product Descriptions

Product Picture Price Pros/Cons

Logitech Attack 31 $19.35 -User friendliness

-Availability

-Low price

-Ease ofconnectivity

-Placement of

buttons is

uncomfortable

-Not many buttons

Saitek PS41

Aviator2

$38.99 -Connectivity

-Versatility

-Compatible with

many consoles

and PCs.

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-Average price

-Lacks in

programmable

buttons

CH products

fighterstick USB3

$100.67 -Compatible with

many operating

systems

-Very wide range

of programmable

buttons

-Realistic flight

control

-Steep price

Microsoft

Sidewinder force

feedback joystick4

$85.95 -Plug and play

easy

-lack of

programmablebuttons

-High price

Table 1: Market survey featuring four popular joystick controllers

In the process of choosing the best design possible for the new controller it is

important to know what features are being looked for and which will enhance the

functionality or general characteristics of the product. The Logitech Attack 3

joystick5, for example, combine the easiness of use and the ease of connectivity

that is looked for in a joystick by any regular or casual gamer; it is important to

have a device which can be utilized easily without any cumbersome method of

connection. It is also important to look for the highest amount of programmable

buttons as possible, this allows the user to gain more control in the game being

played, while shortening the time it takes for him or her to perform a specific task.

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6 Project Management

6.1 Gantt chart

Tasks Start End

Duration(D

ays)

PercentCompl

ete

DaysCompl

ete

DaysRemaini

ng

11/3/20

09

11/5/20

09

11/7/20

09

11/9/20

09

11/11/20

09

11/13/20

09

11/15/20

09

11/17/20

09

11/19/20

09

11/21/20

09

11/23/20

09

11/25/20

09

11/27/20

09

11/29/20

09

12/1/20

09Proposal 11/3 11/5 2

10

0 2 0 Introduction 11/3 11/5 2

10

0 2 0 ProductDescription 11/3 11/5 2

10

0 2 0

Phase 1 11/5 11/12 810

0 8 0

Outline 11/5 11/12 710

0 7 0 ProblemStatement 11/5 11/12 7

10

0 7 0

DesignGoals 11/5 11/10 5100 5 0

MarketSurvey 11/6 11/10 4

10

0 4 0 GanttChart 11 /1 0 11 /1 2 2

10

0 2 0

Phase 2 11 /1 2 11 /2 4 1210

0 12 0 ProjectManagement 11 /1 2 11 /2 4 12

10

0 12 0 Desig

nSketches 11 /1 2 11 /1 9 6

10

0 6 0 Analyz

e

Sketches 11 /1 9 11 /2 1 2

10

0 2 0 Decisi

on-making 11 /2 1 11 /2 4 3

10

0 3 0

Phase 3 11 /2 4 12 /0 1 7 0 0 7 CADModels 11 /2 5 12 /0 1 6 0 0 6 Drawings 11 /2 7 12 /0 1 4 0 0 4

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UserManual 11 /2 7 12 /0 1 4 0 0 4 Animations/Pictures 11 /2 9 12 /0 1 2 0 0 2 Presentati

on 11 /2 9 12 /0 1 2 0 0 2 WebsiteCompletion 11 /2 9 12 /0 1 2 0 0 2 CostAnalysis 11 /2 7 12 /0 1 4 0 0 4 ProductLifeAnalysis 11 /2 5 12 /0 1 6 0 0 6

Table 2: Gantt chart with expected completion dates for individual tasks.

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6.2 Alternative Designs (Hand Sketches)

Figure 1: First proposed design.

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6.3 Analysis of Alternative Designs

Design 1 (figure 1) Design 2 (figure 2) Design 3 (figure 3)

Pros Cons Pros Cons Pros Cons

Features May be

used as

joystick and

gamepad

at users

discretion.

No true

joystick.

Responsive

joystick.

Several

programma

ble buttons.

Some

games

cannot be

played with

joysticks.

Combines

classical

joystick with

popular

gamepad.

Not many

programmable

buttons for

joystick

feature.

Ergonom

ics

Small,

friendly to

the usershand.

Needs the

base to be

used asjoystick or

wheel. May

be heavy.

Buttons are

easy to

reach.Designed

symmetrica

lly.

Not

portable.

The gamepad

serves as

base whenuser is

utilizing the

joystick.

Very small

joystick could

be a nuisancewhen user is in

gamepad

mode. It may

break easily as

well.

Appeara

nce

Streamline

d; usual

controller

shape.

Streamline

d, small but

sturdy base

area.

Awkward

appearance.

Versatilit

y

Innovative

joystick

design

allows

acting as

joystick and

Programma

ble buttons

may be

very useful

and

configured

Can only be

used for

games that

require

joysticks.

May be used

with games

that utilize

joystick or

gamepad.

Joystick not

very

responsive due

to its small

size. Games

that require

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wheel at

the same

time. May

also be

used as

regular

gamepad

for every

game.

rapid joystick

handling

(driving

simulators),

require sturdier

joystick design.

Size Folding

handles

reduce its

size.

Slightly

bigger than

average.

Regular

joystick

size.

Designed to

minimize

size.

Slightly larger

than usual.

Table 3: Analysis of pros and cons of the previously-listed designs based on severalconstraints.

6.4 Decision Making

Based on the design goals set forth in section 4, one preliminary design or a

combination of any of them must be chosen as the design model to pursue during

this project. The first prototype offers very good versatility, innovation and

ergonomic characteristics; it is a viable design that could be very successful in

attracting PC gamers to make use of its features. While the second design offers a

more traditional approach to its functions and the third design attempts to unite two

features to capture both the simulation and gaming market; I believe that based on

the constraints set forth for innovation, ergonomic design, versatility and user-

friendliness, the first model is the one fit to base this project upon. The feature that

sets this model apart from the others is its ability to combine a gamepad and a

joystick/wheel into one part; the latter is a prime example of innovation, as it

mimics the design of a commercial airplanes handle, which can be folded back into

the device so as to maintain its convenient size while usage in gamepad mode.

Below, I have produced a table to compare the three preliminary designs based on

a 1-10 scale.

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Candidate User

Friendliness

Versatili

ty

Appeara

nce

Featur

es

Total

8 9 7 9 33

9 5 8 7 29

5 8 5 7 25

Table 4: Final asessment of preliminary designs. Based on a 1 to 10 scale.

As we have seen above, the design that best fits the requirements and

constraints laid out in previous sections of this report is design number 1. It

combines adequate versatility, user friendliness and several features to make the

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gaming experience complete. In the next page is a preliminary sketch of the final

chosen prototype to work on during the course of this project.

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Figure 4: Final prototype choice with rough preliminary dimensions.

7 CAD Models

The process of creating parts to recreate the chosen design was mostly about

being able to keep track of meaningful dimensions and provide with as much

realism and detail as possible in order to present the work to my peers and to any

other who reviews my work.

As it will be seen in subsequent sections, I created the circuit boards of the

device paying close attention to actual circuit boards of devices in the market. I

have created a rumble motor to give the gamer feedback response; a detailed

assembly of the control stick devices, highlighting the mechanisms of springs anddamping along with the potentiometers. I have also created a battery compartment,

which will allow the controller to be played wirelessly without the need to connect it

to the power source; this battery compartment adds to the versatility and the user

friendliness of my product, hence satisfying some of the constrains laid out above.

I have also attached a USB cord to the assembly of the base, in order for the

user to be able to connect it to a computer if he/she desires so. This feature is also

complimented by a USB adaptor slot in the bottom of the controller which also

allows the user to connect to a computer and interact via USB connection.

The base assembly was designed to provide the gamer with the mostergonomically adaptive features that will allow him/her to experience better

interaction with whichever game is being played. For those who prefer flight

simulation or racing games, a throttle has been added to the front cover assembly

in order to provide the user with a way to increase or decrease velocity in certain

games.

Please be sure to refer to the sections that specify pertinent dimensions to be

able to see that this assembly has been created to actual, real world dimensions (in

mm).

7.1 PartsHere are some pictures of some of the more challenging individual parts.

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(A)

(B)

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(C)

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(D)

(E)

Figure 5: Above are pictures of, (A) the front cover of the assembly, (B) the Directionalbutton pad, (C) the back cover, (D) the upper circuit board and lastly (E) the lower circuitboard.

7.2 Assembly

In order to create the assembly, I set the back cover (figure 5c), as the ground

reference for the process. This allowed me to base my subsequent additions to the

device on the dimensions already placed in the back cover. To accurately create the

holes and extrusions of the cover, I used feature cutouts in order to obtain the exact

dimensions of the cut and paid close attention to the dimensions that I created

before.

The process of assembly was particularly difficult at times, since some of the

parts in my device are not linear and thus are very hard to constrain to adjacentobjects or planes; in order to solve this issue I created several datum planes to

specify certain positions or conditions to align my new incoming parts. Below are

pictures of my different subassemblies.

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(A) Back Subassembly (B) Back Subassembly

(C) Back Subassembly (D) Control Stick Subassembly

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(E) Control Stick Subassembly (F) Control Stick Subassembly

(G) Base Subassembly (H) Base Subassembly

(I) Base Subassembly (J) Front Subassembly

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(K) Front Subassembly (L) Front Subassembly

Figure 6: Different exploded and assembled views of several subassemblies.

7.3 Rendering

Below are several rendered images of my assembly in a pertinent setting;

please note the semitransparent plastic utilized for the front and back covers. This

adds appeal to the product and increases its value in the market.

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(A)

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(B)

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(C)

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(D)

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(E)

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(F)

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(G)

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(H)

Figure 7: Rendered of the completed product at different views.

7.4 Animations

Below, you will find links to the animation created to present the features of my

design. Please feel free to browse my website

(www.sites.google.com/site/apimientapenalvercaddesign) in order to appreciate the

embedded animations that were created.

In order to see a non-rendered version of the animation please refer to:

To see a rendered version of the animation please refer to:

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8 Manufacturing Analysis

Below, you will find drawings of the different parts and assemblies that form

part of my device. Dimensions and names are specified. For a complete list of the

parts, please refer to the manual or my website

(www.sites.google.com/site/apimientapenalvercaddesign).

8.1 BOM/Drawings

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Figure 8: Dimensions and BOM detail drawings for the parts and subassemblies of thedevice.

8.2 Cost Analysis

This section is dedicated to perform a cost analysis for the device I have

created. I will list parts, approximated cost and quantity, a rough wholesale

estimate of the cost of the final product will be given, along with its implications.

The estimated total cost of the product is $47.98. This was done by researching

prices of individual parts. For parts which I did not find prices for, I gave my best

estimate.

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Part Name MaterialQuantity Cost Total

Back Cover Plastic 1 $1.00 $1.00

Thread Steel 4 $0.05 $0.20

Circuit Board 1 Copper/Resin/Teflon 1 $2.00 $2.00


Lid Plastic 1 $0.30 $0.30

Directional Buttons Plastic 1 $0.90 $0.90

Directional Pad Rubber 1 $0.50 $0.50

A_Button Plastic 1 $0.50 $0.50

Oval Button Plastic 3 $0.30 $0.90

Action Buttons Pad Rubber 1 $0.50 $0.50

Index Button Plastic 2 $0.30 $0.60

Index Pad Rubber 2 $0.50 $1.00

Control Stick Plastic 2 $0.70 $1.40Control StickPotentiometer Aluminum/Copper 2 $6.00

$12.00

Control Stick Fulcrum Plastic 2 $0.50 $1.00

Pin Steel 8 $0.01 $0.08

Spring Steel 8 $0.05 $0.40

Circuit Board Screw Steel 17 $0.10 $1.70


Center Button Plastic 3 $0.40 $1.20

Center Pad Rubber 3 $0.50 $1.50

Rumble MotorAluminum/Steel/Copper 1 $2.00 $2.00

Rumble Hammer Steel 1 $0.70 $0.70

Front Cover Plastic 1 $1.00 $1.00

Front Index Button Plastic 2 $0.30 $0.60

Front Index Pad Rubber 2 $0.50 $1.00

Thumb Button Plastic 2 $0.30 $0.60

Thumb Button Pad Rubber 2 $0.50 $1.00

Wheel Button Plastic 5 $0.30 $1.50

Wheel Axle/Holder Plastic 1 $2.00 $2.00

Shaft Plastic 1 $0.70 $0.70

Stand Plastic 1 $1.00 $1.00

Potentiometer Aluminum/Copper 1 $3.00 $3.00

BasePlastic/Rubber/Copper/Steel 1 $1.00 $1.00

Base Circuit Board Copper/Resin/Teflon 1 $0.90 $0.90

Base Lid Plastic 1 $0.40 $0.40

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Throttle Lever Plastic 1 $0.20 $0.20

Total 89$47.9

8

Table 5: Cost analysis with corresponding list of materials, cost of manufacture and totalcost.

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9 Service Analysis

9.1 Product Manual

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Figure 9: User manual for device

9.2 Product Life Analysis

The durability of this product depends on the wear and the stresses it is putunder by the customer. If used regularly (7 days a week), I estimate this product willlast nearly 2 to 4 years. If used in a more moderate way (2 or 3 days a week), thisproduct may last up to 5 years. This device needs no lubrication6.

10Conclusion

The successful completion of this project has helped me integrate some of the

most important aspects of being an effective worker in the engineering field. I have

learned to carry out a complete design process and present it effectively to my

peers or coworkers. I have been able to implement the skills I have learnedpreviously from all my previous Pro/E work and put them to work to create an

appealing, realistic model of my design. Thanks to this project and this class

altogether, I now feel more confident with the basic skills of solid modeling, report

writing and presentation. The skills I have learned and the confidence I have gained

from working in Pro/E in this and other projects allow me to say that I would like to

further my work on this device, in order to create a more complete package to go

with the main controller and base.

The more challenging parts of this project was the animation, due to virtual

memory capacity restraints placed by the computer I was working on, I was not able

to create a video that performed everything I wanted it to perform. For example, Iwould have wanted it to go through every single piece individually and demonstrate

how they assembled into position into the main device. I overcame this problem by

creating an animation that was not long so as to not put too much strain on the

computer, but at the same time, allowed the viewer to explore every the assembly

by seeing pieces assemble in and out of the device, though not in a piece by piece

manner.

This project has been a success; I have been able to surpass or at least meet

the design goals set forth in previous sections. These are listed below.

User Friendliness: The device would be distributed to users in twoparts; these consists of the main gamepad and the stand. In order to

assemble them together, the user simply needs to insert the clamps of

the axle into the back of the gamepad. The design of the handles is

ergonomic and users will find it easy to adapt to. The layout of the

buttons emulates the layout of popular gamepads being marketed today.

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Versatility: This device is in fact very versatile; for the reasons that it isdesigned to be used both as gamepad for regular games or as a wheel for

driving games or simulators. The gamepad itself can be attached to a

stand so as to allow the gamer to have a more realistic experience of

driving or piloting. Durability: According to the service life analysis for this device, I

believe it can actually be very durable and offer a good gaming platform

in a consistent basis for at least half a decade.

Cost: Due to the sheer amount of working parts and the detail that ittakes to manufacture them, this product will place mid-scale in terms of

price compared to other products in the market. If we inspect the

following table, we will find a comparison of price between the product

we have created, its expected retail price and the prices of other popular

controllers/joysticks in the market today.

Product Picture Price

Logitech Attack 37 $19.35

Logitech Cordless Rumblepad $33.88

Saitek PS41 Aviator8 $38.99

Gamepad (My Design) $47.98

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Microsoft Sidewinder force

feedback joystick9

$85.95

CH products fighterstick USB10 $100.67

Table 6: Final price comparison of the products.

Appearance: This may be, unfortunately, the department where thisproduct lacks the most. However, I believe that despite this small

drawback, gamers looking for a versatile, reliable and easy to usecontroller will choose substance over style.

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1 References

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1 Amazon.com. http://www.amazon.com/b?ie=UTF8&node=172489. Page visited 11/11/2009 at11:00.




5 Logitech.com. http://www.logitech.com/index.cfm/search/&cl=us,en?q=attack+3. Site visited4:58 am 11/4/09.

6 Wikipedia.com. Product Life Cycle.http://en.wikipedia.org/wiki/Product_life_cycle_management.

Visited 12/13/09




http://en.wikipedia.org/wiki/Product_life_cycle_managementhttp://en.wikipedia.org/wiki/Product_life_cycle_managementhttp://en.wikipedia.org/wiki/Product_life_cycle_management

Adonis Pimienta-Penalver MAE377 Final Project

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