group 15 emd332 machine design report - 2d camera slider

7/26/2019 Group 15 EMD332 Machine Design Report - 2D Camera Slider

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EMD 332MACHINE DESIGN

FINAL REPORT

2D CAMERA SLIDER

SUPERVISOR

DR. FEIZAL YUSOF

MEMBERS

Name Matric no.

Barathan A/L Baskaran 120362

Mark Selvan A/L Anthony Rogers Louis 120385

Jerome Lee Jie Jen 120375

Nur Muhaimin Aidil Bin Muhaimi 120407


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Table of Contents

1 Introduction 3

2 Problem Background 3

3 Objectives 4

4 Methodology 4

5 Design Explanation and Details 21

6 Fabrication 23

7 Manufacturing Cost 26

8 Return of Investment 28

9 Limitation and Improvements 29

10 Impact of Machine to Society 30

11 Reference 31

12 Appendix 31


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1.0 Introduction

The project has been given to our group is to design and develop a prototype of a

device that can move a camera in 2D positioning system for an application in engineering.

The purposes of this device are easier to control a camera during adjustment and to have a

good vision in detecting a scratch on an object in engineering application. In addition, we arerequired to design an automated device which is the device can be controlled by buttons.

There are already have two devices existing in the same concept that available in market

which are:

Figure 1: XY manual 20cm camera slider and DSLR slider

The camera slider that we design is motorized and no need human effort on adjusting

camera. This design would ease the process on scanning or recording any engineering

application. For example, an engineer needs to analyze a small crack on a wall. Manually he

needs to hold the recorder using his hand and take the video in a slow motion. This process in

very unreliable as there is poor stability on holding the recorder accurately without moving itand the motion or speed of taking the video for instance left to right will vary at different

speed. With the design, we can overcome all this trouble. We just need to set up the prototype

on the intended place of recording. Then we just need to switch it on and control the recorded

axis using buttons. It moves in a constant slow speed. The speed can be controlled using

different types of ac/dc motor or stepper motor controlled by a microprocessor.

2.0 Problem Background

In engineering industries, the crack on an object should take an action to determinethe strength of the material. Then, it is difficult in adjusting cameras position for a small

crack by using our bare hands to have a good vision on the camera display. Hence, it is also

difficult to adjust the camera in X and Y axes position. The crack must be examined

accurately since it can cause failure in a system.


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Besides that, manual adjustment is time consuming. It is possible to have a proper

position of camera by using our bare hands so lot of time we spend in adjusting the camera

position. It is also required a lot of effort to have a good display of the crack during the

adjustment. Conventional sliders adopt the use of knob to adjust the relative position which

can be tedious and also about time consuming. In other hand, the existing camera sliders thatare available in the market are not motorized. Both of the sliders are manually adjustment.

3.0 Objectives

1. To design a 2D positioning system for engineering application (finite element

analysis)

2. To determine the necessary components needed to run the prototype.

3. To fabricate of the design into a working prototype.

4.

Ensuring the prototype function as intended with minimum errors

4.0 Methodology

In designing our 2D Camera Slider, we follow the standard design procedure which we

learned. We have gone through the four phases of design to ensure our project flow to be

more systematic and organize.


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4.1) Formulating a Design Problem

4.1.1) Ideas from Existing Design

Product

Advantages Compact and easy to

transport

Light weight

Portable

Wide range of movement

Disadvantages Limited range ofmovement

Cannot accommodate

large cameras

Tedious to adjust X and Y

position

Bulky

Requires a large area to be

used

4.2) Conceptual Design

4.2.1) Specify Requirement

From the study and research we done from the existing camera slider, we identified

the basics requirement for our camera slider prototype. The prototype should include:

2D Camera Slider

Base frame Sliding Mechanism

Supporting

Parts/Components Electrical Components


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4.2.2 Weighted Rating Evaluation

After obtaining ideas from brainstorming and preliminary rounds, we came up with

3alternatives. We compared them in a systematic weighted rating evaluation to choose the

best design among the 3 alternatives.

Features Alternative 1 Alternative 2 Alternative 3

Linear

movement/Slidingmechanism

Lead screws and

Shafts

Shafts and

Rollers

Shafts and

Linear BearingsTiming belt

Manufacturing Cost High Low Medium

Number of parts Lead screws - 3

Shafts - 2

Shafts2

Rollers - 6

Shafts - 4

Linear bearings4

Timing belt - 2

Manufacturability Hard Medium Easy

Weight High Medium Low

Alternative 3 is chosen. Compared to Alternative 1 which utilized lead screw which is costly,

Alternative 3 has medium manufacturing cost. Compared to Alternative 2, Alternative 3 uses

linear bearing instead of roller, this reduces friction. Since we did not utilize roller in

Alternative 3, we are not required to machine the roller track, hence making

manufacturability easier. Alternative 3 also has the lightest weight, which is one of the most

important criteria in robust design.

4.2.3 Material Selection

By referring to the availability of materials in USM Workshop storeroom, we decided to use

Aluminium T6061 for all the parts in our prototype.

Material Properties of Aluminium T6061:

Density: 2700kg/3 Ultimate Tensile Strength: 310MPa

Tensile Yield Strength: 276MPa

Modulus of Elasticity: 68.9GPa

Shear Modulus: 26GPa

Shear Strength: 207MPa


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We deduce that Aluminium T6061 is strong enough to sustain the load without any

significant deformation. This will be proven in calculations section.

4.2 Configuration Design

4.3.1 Development Work

Using SolidWorks, we drew our 2D Camera Slider in details based on the best design

Alternative 3 chosen.

Figure 2: Solidworks drawing


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4.3.2 Schematic Diagram


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Bill of Materials

No. Part Item Description Quantity

1 Base frame

(aluminium)

Hollow 1

2 Middle platform

(aluminium)

Hollow 1

3 Top platform

(aluminium)

Hollow 1

4 Cylindrical shafts Solid 4

5 AC motor 2

6 Timing belt Width=6mm Length=1097mm 2

7 Pulley Bore=5mm Pitch=2.032mm

Width=6mm

4

8 Linear Bearing Bore=10mm 4

9 Single-bearing housing 2

10 Double-bearing housing 1

11 Wooden plate 4

12 Pulley supporter 4

13 Motor supporter 2

14 M5x30 bolt 14

15 M5x15 bolt 10

16 M4x8 bolt 4

17 M3x15 bolt 2

18 M5 nut 24

19 M3 nut 2


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4.3.4 Flowchart

Figure 3: Flowchart of design process


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4.3.4 Project Gantt Chart

Task Academic Week (15/02/201629/05/2016)

1 2 3 4 5 6 7 8 9 10 11 12 13 14

First meeting with supervisor, course

introduction and lectureF

inalPresentation,ReportandHTMLwe

bpageSubmission

Discussion of 2D Camera Sliding mechanism

Selection of the best sliding mechanism to beimplemented

Design and modification to 2D Camera Slider

Selection of final design, supported with

relevant calculation and simulation.

Make the purchase order of electrical

components

Fabrication of 2D Camera Slider prototype

Testing of the 2D Camera Slider prototype

Completion of final report, HTML webpage

and final presentation


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4.4 Parametric Design

(a) Mass of base frame

The base frame is hollow inside, with wall thickness of 0.45mm

Volume

= Solid VolumeInner hollow volume

= [(75.65)(600)(25.05)x2 + (75.65)(600-2x75.65)(25.05)x2][(74.75)(599.1)(24.15)x2 +(74.75)(599.1 - 2x74.75)(24.15)x2]

=3974641.1663773223.29

=201417.876 3

= 2.0142 x103

Mass

= density of Alumium T6061x Volume

= 2700 x 2.0142 x10

= 0.5438kg


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(b) Mass of middle platform

The wall thickness is 0.45mm

Volume = (75.65)(600)(25.05)-(74.75)(600)(24.15) = 53892 3=5.3892 x 103

Mass = 2700 x 5.3892 x 10= 0.1455kg

(c) Mass of Shafts (2 x length 598mm , 2x length 486mm), diameter = 10mm

(i) length = 598mm

Volume =3..

(0.598) = 4.69668 x103

Mass = 2700 (4.69668 x10=0.1268kg

(ii) length = 486mm

Volume =3..

(0.486) = 3.81704 x103


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Mass = 2700 (3.81704 x10= 0.1031kg

Total mass of the 4 shafts = 2 (0.1268+0.1031) = 0.4598kg

(d) Mass of shaft holders x 8

Wall thickness = 2mm

Volume = (50)(20)(23)(46)(20)(19)2(3.142)(10)(10)/4 = 5362.923=5.36292 x1063

Mass = 2700 (5.36292 x106= 0.0145kg

Total mass of 8 shaft holders = 0.1158kg

(e) Mass of pulley supporting unit (small shaft holders x 4)


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Volume = (50)(20)(23)(46)(20)(19)2(3.142)(5)(5)/4 = 5480.733=5.48073 x1063

Mass = 2700 (5.48073 x106= 0.01480kg

Total mass of 4 small shaft holders = 0.0592kg

(f) Mass of single housing x 2

two small hole diameter = 5mm

Volume

= (23+2)(20+45+20)(30)2 (23)(20)(30)(30)(3.142)(20)(20)/42(2)(3.142)(5)(5)/4

= 34146.683

=3.414668 x 10= 3

Mass = 2700 (3.414668 x 10) = 0.0922kg

Total mass of 2 single-housing = 0.1844kg


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(g) Mass of double housing

Two big hole with diameter 20mm, and two small holes on top with diameter 5mm

Volume

= (75.65)(25)(30) -2(30)(3.142)(20)(20)/4(75.65 -2x26)(25-7)(30)=2(7)(3.142)(5)(5)/4

=24842.053=2.484205x103

Mass = 2700 x 2.484205x10=0.0671kg

(h) Mass of Top Platform

wall thickness =0.45mm


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Volume = (75.65)(100.10)(25.05)-(74.75)(100.10)(24.15) = 8990.982 3=8.990982 x1063

Mass = 2700 x 8.990982 x 106= 0.0243kg

(i) Mass of wooden plate x 4

Density of wood = 0.75kg/3

Density of wood


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Analysis of Force exerted on the lower 2shafts (The 2shafts on the base frame)

Mass to be supported

= Middle Platform + Top Platform + 2shafts + 4shaft holders +2pulley supporter + 2 single

housing + double housing + 1 AC Motor

=0.1455 + 0.0243 + 0.2062 + 0.0579 +0.0074 + 0.1844 + 0.0671 + 0.100

=0.7928kg

Force acted = mg = 0.7928(9.81) =7.7774 N

The force are shared into 2 shafts, hence force on each shaft = 3.8887 N

When the load are exerted on the middle of the shaft:


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Free Body Diagram

Shear Force Diagram (units are in N)

Bending Moment Diagram (units are in Nmm)


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Deflection of beam =

8

Radius of shaft =5mm

Modulus of Elasticity, E=68.9GPa

Second area moment of inertia, I = (3.142/4)0.005)=4.9087x10

=3.8887(.98)

868.9.987

= 5.1224x10

=0.5122mm

According to theory of Solid Mechanics, the deflection is the maximum when the load is acted

on the centre of the shaft.

Hence the maximum deflection of the beam is only 0.5122mm which is negligible, and will not

cause failure to our prototype.

The other two shafts the the middle platform supports less mass as compared to the two shafts

computed, hence the deflection of the shaft at middle platform is surely less than 0.5122mm

Testing of Prototype:

We test run our prototype, and we compute the time needed for the platform to move full range

of displacement of 450mm

Time (s) Trial 1 Trial 2 Trial 3 Average

Top Platform 162 161 159 160

Middle Platform 169 170 171 170

Average speed of top platform = 450/160 =2.8125mm/s

Average speed of middle platform = 450/170 = 2.6471mm/s

As expected, the middle platform will move slower because of more weight to be supported.


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5.0 Design Explanation and Details

5.1) Mechanical Explanation

The prototype consists of 3 levels of platform which is the base, mid-platform and upper-

platform. The mid-platform which moves in the Y-direction is fixed to the base by using a shaft,linear bearing and linear bearing holder. The cylindrical shaft is attached on top of the base using

a shaft holder. Linear ball bearing slides on the shaft to ensure a linear motion. The bearings are

fit and locked into a housing which is then the housing is fixed to the mid-platform. The same

concept is being used on the upper platform which is attached to the mid-platform. To ensure

stability, two bearings are used for each platform and fixed on the both ends.

Figure x: Mechanical design

Ball bearing slides offer smooth precision motion along a single-axis linear design, aided by ballbearings housed in the linear base, with self-lubrication properties that increase reliability.

Commonly constructed from materials such as aluminum, hardened cold rolled steel and

galvanized steel, ball bearing slides consist of two linear rows of ball bearings contained by four

rods and located on differing sides of the base, which support the carriage for smooth linear

movement along the ball bearings. This low-friction linear movement can be powered by either a

drive mechanism, inertia or by hand. In this prototype, we use a drive mechanism to move the

bearings attached to the platform. Ball bearing slides tend to have a lower load capacity for their

size compared to other linear slides because the balls are less resistant to wear and abrasions.

5.2) Electrical Explanation

To move the both mid and upper platform, a timing belt is attached to the base of the both

platforms. The timing belt is then fixed to the pulley which is fixed on the AC motors. Two Ac

motors are being used for this prototype. One is attached on the base which controls the

movement of mid platform (y-axis) and another motor is attached to the top of mid-platform


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which controls the upper platform (x-axis). Both AC motors are connected directly to the 240V

power supply which is normally used by all electrical appliances.

Ininduction motor we give only one direct supply. It is very simple, from the name itself we can

understand that induction process is involved. When the supply is given to the stator winding,

flux will generate in the coil due to flow ofcurrent in the coil. Now the rotor winding is arrangedin such a way that it becomes short circuited in the rotor itself. The flux from the stator will cut

the coil in the rotor and since the rotor coils are short circuited, according to Faraday's law of

electromagnetic induction,current will start flowing in the coil of the rotor. When the current

will flow, another flux will get generated in the rotor. Now there will be two fluxes, one is stator

flux and another is rotor flux and the rotor flux will be lagging w.r.t to the stator flux. Due to

this, the rotor will feel a torque which will make the rotor to rotate in the direction of rotating

magnetic flux. So the speed of the rotor will be depending upon the ac supply and the speed can

be controlled by varying the input supply.

The first thing to do in an AC motor is to create a rotating field. 'Ordinary' AC from a 2 or 3 pin

socket is single phase AC. It has a single sinusoidal potential difference generated between only

two wires which is the active and neutral. Note that the Earth wire doesn't carry a current except

in the event of electrical faults. With single phase AC, one can produce a rotating field by

generating two currents that are out of phase using for example a capacitor.

Finally the both AC motors are connected to a switch box which is then directed to the plug. The

switch are there to control the direction of x and y axis. Switching on one of the button will

activate the direction of the particular platform. To change the direction, simple switch off back

the same button, wait for 3 seconds minimum and then switch it on back. Exactly same concept

is done to the other button on the switch box to control another platform.
http://www.electrical4u.com/induction-motor-types-of-induction-motor/http://www.electrical4u.com/electric-current-and-theory-of-electricity/http://www.electrical4u.com/faraday-law-of-electromagnetic-induction/http://www.electrical4u.com/faraday-law-of-electromagnetic-induction/http://www.electrical4u.com/electric-current-and-theory-of-electricity/http://www.electrical4u.com/electric-current-and-theory-of-electricity/http://www.electrical4u.com/electric-current-and-theory-of-electricity/http://www.electrical4u.com/electric-current-and-theory-of-electricity/http://www.electrical4u.com/faraday-law-of-electromagnetic-induction/http://www.electrical4u.com/faraday-law-of-electromagnetic-induction/http://www.electrical4u.com/electric-current-and-theory-of-electricity/http://www.electrical4u.com/induction-motor-types-of-induction-motor/


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6.0 Fabrication

Base & Platforms

The base and platforms are made of aluminum material. The material was made hollow not solid

as it would be lighter and less friction would act. The materials were ready made. The hollow

aluminum was sawed in 5 parts of 60cm length each. 4 parts was combined using rivet to create

the base of this prototype. The other part was made as the mid-platform. The upper platform isalso from the same material but with a smaller length of 100mm.

Shaft & Shaft holder

We used a long cylindrical aluminum shaft with a diameter of 10mm for the conveyor. We

sawed the shaft into 4 parts with length of 598cm and 486cm. Each length has 2 rods. The longer

shaft is used to slide the mid platform and the shorter shaft is used to slide the upper platform.

We need to ensure the mid-platform must not touch the base and upper platform. Thus the shaft

must be attached using a shaft holder at a higher certain length. The shaft holder is also

aluminum material and its hollow. We saw it and drilled 2 holes of 10mm and 5m m. the 10mm

hole is for attaching shaft in it and the 5mm hole is for attaching the shaft holed to the base with

a bolt and nut. During drilling process, we must ensure the rpm is slow to avoid the material totear as it is a soft material and its hollow.We need to avoid bending as well.


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Pulley Supporter

The pulley supporter consists of three parts which is two mini shaft holders and one small shaft.

As there was no smaller shaft to support of pulley with the bore diameter of 5mm, we decided to

use an end thread bolt with diameter of 4mm. We used 4mm diameter instead of 5mm because

the need to avoid friction between pulley and the bolt as we need the pulley to rotate constantly.

The head of the bolt is sawed so we could insert the bolt between the 4mm holes drilled on theside of the holder. The bolt with the thread part is fixed using two nuts. The supporter is then

fixed to the base and mid-platform using bolt and nut as well. A hole of 5mm is drilled on the

bottom surface of the supporter, base and mid-platform.

Single Bearing Holder

The function of single bearing holder is to support the mid-platform to the base shaft. The

materials used aluminum block. We saw the block using a saw machine in the workshop. Then

we used the milling machine to fine the surface. The both end grove like is cut using milling

machine as well, at 0.5mm per round. Once done, we drilled a small hole of 3mm on the top of

the housing. The function of it is to tighten the bearing using a screw . 20mm hole is drilled in the

between of the housing to fix the linear ball bearing in it. Finally, 5 mm hole is drilled on thewings of the housing. This is to fix the housing to the mid-platform using a bolt and nut.


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Double Bearing Holder

The function of double bearing holder is to support the upper-platform to the shaft at mid-

platform. The materials used aluminum block. We saw the block using a saw machine in the

workshop. Then we used the milling machine to fine the surface. The middle grove like is cut

using milling machine as well, at 0.5mm per round. Once done, we drilled a small hole of 3mm

on the both side of the housing. The function of it is to tighten the bearing using a screw. 20mm

hole is drilled on the both side of the housing to fix the linear ball bearing in it. Finally, 5 mm

hole is drilled on the top of the housing. This is to fix the housing to the upper-platform using a

bolt and nut.


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7.0 Manufacturing Cost

7.1) Direct Material Cost

Material Unit Cost/Unit (RM) Total Cost (RM)

Aluminum Flame

(1 x 3)

3 30 90

Aluminum Rod

(10mm x 60mm)4 23 92

Aluminum Rectangle

Block (40 x 40 x 150mm)

1 55 55

Total Cost 237

7.2) Direct Labor Cost

Labor Days Daily Wages (RM) Total Wages (RM)

6 25 10 1500

7.3) Manufacturing Overhead

Process Power (kW) Hours Cost/Hour

(RM)

Overhead

Cost (RM)Store Mill - - - -

Crosscutting Grinding

Machine

3.7 15 0.33 18.32

Machining Milling 11 20 0.33 72.60

Drilling 0.6 20 0.33 3.96

Finishing Painting - - - 20

Total Cost 114.88

7.4) Cost of Components & Purchase Order

Components Unit Cost/Unit (RM) Total Cost (RM)

AC Motors 2 7.50 15.00

Linear Bearings

(10mm)4 18.50 74.00

Press Switches 2 1.50 3.00

Circuit Box 1 3.00 3.00

Power Plug 1 5.00 5.00


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Wires (2m) 1 7.00 7.00

Timing Belt 2 150.00 300.00

Pulleys 4 31.00 124.00

Nuts & Bolts (M4) 10 0.10 1.00

Nuts & Bolts (M5) 10 0.10 1.00

Nuts & Bolts (M3) 10 0.10 1.00Total Cost 534

7.5) Overall Cost

Cost (RM)

Direct Material Cost 237.00

Direct Labor Cost 1500.00

Manufacturing Overhead Cost 114.88

Components Cost 534

TotalCost

2385.88


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8.0) Return on Investment

Return on Investment ROI can be defined as a performance measure used to evaluate the

efficiency of an investment or to compare the efficiency of a number of different investment. In

this project, we considered the return on investment for the manufacturer as well as for the

farmer. To calculate ROI, the benefit (return) of an investment is divided by the cost of theinvestment where the result is expressed as a percentage or a ratio.

8.1) Return on Investment for Manufacturer

The overall (total) cost for one unit of the XY Slider which includes the manufacturing cost aswell as the component part and purchasing order is RM 2385.88. By taking 15% of profit from

the total cost, each unit of the machine is selling at the price of RM 2743.76. Therefore, the profit

that we obtain from each unit of the machine is RM 357.88. Basically, our business plan is to sell24 units of the spraying machine per year with total investment of RM 100,000.00.

Year 2015 2016 2017 Total

Investment (RM) 100,000.00

Production Cost per

24 units (RM)

57,261.12 57,261.12 57,261.12 171,783.36

Gain (RM) 100,000.00 100,000.00 100,000.00 300,000.00

Net profit (RM) 42,738.88 42,738.88 42,738.88 128,216.64

ROI = 100%

ROI =8,6.6,.

,. 100%= 28.22 %


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In the year 2015, the ROI is -57.29% while in 2016 was -14.52%. The ROI value starts to be

positive in the third year (28.22 %) with total profit of RM 128,216.64.

9.0) Limitation and Improvement of Design

LIMITATION OF DESIGN IMPROVEMENT OF DESIGN

Unable to Control Speed of Motor Use stepper motor together with Raspberry Pi

to enable control of motors rpm.

Difficult to set position of the object Use joystick to control the position of the

platforms instead of switches

Heavy Reduces the size of the prototype and also the

number of components attached to the

prototypeUnable to carry heavy load Use motors with higher torque capability

Investment

RM 100,000


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10.0) Impact of the 2D Slider to Society

The impact of the 2D Slider to society is indeed huge. There has always been the need for an

automatic positioning system in the field of science, engineering, photography and etc.Conventional sliders that are sold in the market have many drawbacks.

Our 2D Slider is a state of the art machine designed to be robust, effective and efficient. It

effectively solves the many problems associated with conventional sliders. Our team dealt with

these problems and successfully overcame it. Some of the problems that are constantly faced byusers of slider are the manual adjustment of the camera. Manual adjustment is tedious and

difficult. The user has to push the platform which at times can be strenuous due to the friction

between the moving parts. The varying force exerted by the user on the machine couldpotentially damage certain components attached to the machine. Our 2D slider tackles this

problem by eliminating any hand contact on the machine by using switches to automatically

position the camera at any point. By this ingenious solution the user now can more easily adjustthe position without damaging the machine.

Conventional sliders typically have only one degree of freedom. This limited movement restricts

the user to position the camera and at the same time causes the user difficulty. The user now hasto move around the entire machine to get a good position. The 2D sliders instead have an

additional 1 degree of freedom making it have a total of 2 degree of freedom. This additional

DOF may look trivial but can make usage of the machine much more convenient and user-friendly. The user could position the camera with much more ease now.

The 2D Slider is also light weight as its made of mostly aluminum rectangular bars. This ensures

the machine is easily moved around and portable. The machine is also designed to be robust sothat moving it around wouldnt damage the machine. 98% of the machine is made up of metal

making it long lasting and also wear prove. It can be used in fairly extreme environment where

precision positioning of a camera is required. The precision of the 2D slider is indeed high. Finemovement can be made to move the camera. This especially comes handy for instance in the

crack analysis of walls or beams. Some cracks can be so small that extreme precision is needed

and the 2D sliders do the job well enough.

In conclusion, the 2D slider has a huge positive and meaningful impact on society. It tackles the

many problems faced by users that may seem trivial but in fact could be painfully annoying at

times. Our team believes that the 2D slider has the potential to revolutionize sliders.


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11.0) Reference

1. https://en.wikipedia.org/wiki/Linear-motion_bearing#Ball_Bearing_Slides

2. http://www.electrical4u.com/induction-motor-types-of-induction-motor/

3. http://www.animations.physics.unsw.edu.au/jw/electricmotors.html

4.

https://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-

3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3A

12.0) Appendix

Timing Belt
https://en.wikipedia.org/wiki/Linear-motion_bearing#Ball_Bearing_Slideshttps://en.wikipedia.org/wiki/Linear-motion_bearing#Ball_Bearing_Slideshttp://www.electrical4u.com/induction-motor-types-of-induction-motor/http://www.electrical4u.com/induction-motor-types-of-induction-motor/http://www.animations.physics.unsw.edu.au/jw/electricmotors.htmlhttp://www.animations.physics.unsw.edu.au/jw/electricmotors.htmlhttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttps://www.google.com/search?q=camera+slider&biw=1366&bih=681&site=webhp&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiMp6fN1-3MAhUFr48KHeU4AMYQsAQIKA#imgrc=C16klnplZsiyZM%3Ahttp://www.animations.physics.unsw.edu.au/jw/electricmotors.htmlhttp://www.electrical4u.com/induction-motor-types-of-induction-motor/https://en.wikipedia.org/wiki/Linear-motion_bearing#Ball_Bearing_Slides


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Electric Components


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Aluminum Frame

group 15 emd332 machine design report - 2d camera slider

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