product design portfolio

Mohammed Soheb HossainProduct Design Technology

[email protected]@SohebH93

Product Design Portfolio“When people talk about innovation in this decade, they really mean design.”

— Bruce Nussbaum

[email protected]

07505606065

uk.linkedin.com/in/sohebh93/

@SohebH93

London - Bristol - Dhaka

Who I am...I have been summed up by friends, colleagues and employers as a bright and exciting breath of fresh-air in any environment. As a new Product Design Graduate, I now seek to continue my journey within design and further challenge my potential.

What I do...Over the last 3 years I have explored, learned and developed a wealth of skills and expertise within design.

Proficiency in creative methods of research, evaluation and analysis

An advanced repertoire in desktop packages (SolidWorks, KeyShot, Rhino, T-Splines, V-Ray, Autodesk Mechanical, Fempro Algor, Adobe Photoshop/Illustrator/InDesign, Dreamweaver/Flash, MS Office, Working Model 2D)

Clear visual communication through sketch ideation, marker rendering, pencil work and pastels

Model-making, proto-typing and rapid test-rig fabrication

i.

PROFILE



‘Good Design’ to me is...My idea of good design is being fully-functional and intuitive; having a beautiful aesthetic form that follows function; being sustainable and environmentally helpful all throughout ideation, manufacture, sale, use and end-of-life. However, a good designer to me doesn’t just encapsulate all these attributes. A good designer, much like the hypodermic syringe theory, can effectively communicate their feelings, ideas and aspirations of that specific design, to the end-user. Above all else, good design is a grand gesture for the designer to be proud of, and the end-user to have in their life as an extension of themselves.

ii.

Profile [i.]

Contents [ii.]

MIE-TRAKR Migraine Management [Pg. 1 - 16]

The IVNT Lightweight Car Seat [Pg. 17 - 20]

The Eglu Shack Omlet Domestic Incubation [Pg. 21 - 26]

The Autoquick Braun Automatic Citrus Juicer [Pg. 27 - 33]

The Little-Big Bar B&Q Garden Lopping Shears [Pg. 34 - 37]



TABLE OF CONTENTS

MIE-TRAKRMIGRAINE MANAGEMENTDEVICE

1.



Project BriefDesign and develop a migraine management device that helps the sufferers of migraines, live with and manage their condition.

End-UserAdults who suffer from migraines.

RESEARCHPRIMARY

2.

My research began with finding sufferers of migraines, each from different walks of life and compiling as much information from them as possible. I then utilised desk research from existing studies and literature to back up and explain these findings. Through both primary and desk research, I isolated the most efficient and effectivemethods of treating migraines.



Kohinoor Akter, 34Network Manager

“… petrified for the health of the baby; I was worried there will be long lasting effects on them…”

Josh Briars, 25Professional BMX

“… feels like a hot spike pushing from the back of my head to my eye… ”

Dr. Fayyaz AhmedConsultant Neurologist

“… there are different options for treatments, the most effective being drugs, but they come with strong side-effects…”

DEVELOPMENT ICONCEPT

3.



Electro-magnetic Pulses

TRANSCRANIAL MAGNETIC STIMULATION THERAPY GLOVES

BatteryStress

Levels/Pulse

Down Up

Time

Mode

ELECTRO-MAGNETIC PULSE BODY-KIT

NODES

THERMAL THERAPY

KIT

Opposite temperatures help promote positive blood flow away from head

SHADES THAT PREVENT PERIPHERAL LIGHT

Pillow Cover (Empty)

Pillow turned inside-out

25% of original size when compacted

Pillow Unraveled

Pillow in carry-bag TRAVEL

PILLOW

DEVELOPMENT IICONCEPT

4.



Pillow in bagOff Pillow,

out of bag

THERMAL PILLOW

Memory Foam Pillow

Comfort & user-specified head position

Heat/Cool Pillow Cover

High TemperatureMedium Temperature

Low TemperatureMonitor: Time

On/Off

Controler

Rings inflate applying just enough pressrue for the user

PRESSURE FEEDBACK MASK

Feeds through inflation to rings

Skin Textures Changeable Skins

Roll across or Apply to

Cold pack inside pocket

Finger goes here

Pocket for cold pack

Cold Pack

Cold Pack

Cold Pack Pocket

COMPACTIBLE THERAPY ENVIRONMENT

#1

#2

#3

VibratingMotor

PULSATINGTHERAPYBALL

THERMAL THERAPY SLEEVE

DEVELOPMENT IIICONCEPT

5.



Cold Pack #1

Cold Pack #2

Alternative Cooling Pack

5 0 p Coin

Sizing on a generic face

Cold Pack #2

Up

Monitor: time, mode

& battery life

Down

Sonar PulsesDUAL THERAPY

MASK

Mask & Remote

On/OffStart

Dual Therapy

Sonar Therapy

Thermal Therapy

Easy-carry Zip Bag

Clip-locksTherapy Glove

Collapsed

Slides in and out

Folded Up

Flip-open Lid

Magnetically assembles together

Foldable and Collapsable

KIT BOX #1

KIT BOX #2

KIT BOX #3

Thermal Patches

COLD THERAPY MASK

6.

DEVELOPMENT -TESTINGCONCEPT



Most of my end-users were interested in how a ‘sleep therapy mask’ would work, so I produced a mock up that emulates some of the effects, although crudely. The pressure of the tights emulated the pressure mask, the relief sounds produced the sound therapy component, while the concealment of light helped to desensitise the user from light exposure.

After narrowing down cold thermal therapy as one of the most effective methods of treating migraines, I made a sleeve with two cold-conductive metal plates attached to them. I asked my user which orientation of the plates on the finger was more comfortable apply to the eye.

Kohinoor Briars - “I preferred the inside of the finger, just felt more natural. I was wondering about if it would stay cold for long and will it be cold when I need to use it in an emergency, I mean does it have to stay in the fridge?”

DEVELOPMENT IVCONCEPT

7.

The Migraine Management Kit

The Therapy Mask Provides dual therapy (Sonar and Thermal). Indicates to others that the user is suffering a migraine

(subtle exterior glow). Emulates a recovery environment. Desensitises light and sound (blinding-out and

noise-cancellation).

The Cold Sleeve Cool thermal treatment for specified user-points. Cushioned in conjunction with ‘Auto-Acupressure guide’ within

the app (auto-acupressure and thermal therapy).

The Watch and App Provides biofeedback on the user and their migraine. Allows user to manage their own migraine diary. Tracks use of other products from the kit automatically. Automatically records data and graphically presents them.

The Modular Box Collapsible, modular, portable and easy-to-carry kit. Designed to fit at work desk, home, car glove-compartment and

bags. Can be kept together or split to different locations.

The Kit

The App

In-use



DEVELOPMENT VCONCEPT

8.



After further research, end-user interviews and advice from Dr. Fayyaz Ahmed, I concluded that a kit that relieves the migraine was not ethical for a design brief; as proving the results of treatment is sensitive in the medical field. Instead I decided to eliminate the root of the problem by managing migraines and help prevent them from occurring in the first place. I began designing a management device and used the Internet of Things and Wearable Technology as inspi-ration.

‘….prevention is the best form of treatment.’

9.

DEVELOPMENT VICONCEPT



Once I decided on producing a bio-sensing watch that would monitor the variables that are attributed to migraines, I needed to decide on a form and aesthetic that promotes calm, tranquillity and healing. It was also necessary to research, prototype and combine the required technologies.

I began with sketch modelling the form. I also decided to use a ‘slap-band’ for the brace so that it could be utilised by the user on any extremity of their person.

10.

DEVELOPMENT VIICONCEPT



I deduced that the utilisation of a display would be counter-intuitive to the function of calming the user. User comments and critical thinking concluded that a display with various and complicated statistics would be too complicated and stressful and could in fact induce a migraine.

So as a result I decided to utilise soft and calm light diodes to indicate healthy and harmful levels of each bio-sensing variable. This will indicate to the user when a migraine could come on and what steps could be taken to avoid one.

WORKINGSMIE-TRAKR

11.



MigrainesMigraines are a complicated medical condition with symptoms ranging from intense visual auras, to a loss of cognitive clarity. However migraines do not garner the same empathy that other ‘serious’ health conditions receive. There are as much as 610,000 sufferers in the UK (The Migraine Trust, 2009). Currently however there are little means to managing stress, anxiety and the other triggers for migraines.

MIE-TRAKRThe MIE-TRAKR is a migraine management device that brings the effectiveness of Medical Biofeedback to an easy-to-use and unobtrusive piece of fashionable technology.

It works by updating the user on certain bio and environmental levels which can then be processed to make adjustments and help avoid triggers of potential migraines. The Bio-levels measured are Skin Activity, Skin Temperature, Sleep Quality, Body Hydration and Pulse, along with the Light Intensity sensor as the environmental gauge.

TESTINGMIE-TRAKR

12.


[email protected]@SohebH93As the MIE-TRAKR works off of a theoretical concept that I isolated from my

primary and desk research, I had to find a way of proofing that concept. I decided to use one of my end-users and test as many of the proposed variables as possible and see if they did in fact have a direct correlation with stress and thus potentially migraines.

I chose Mr. Callum Nicklin as he is an athletic individual, who was going through a stressful time with his final year of university.

The test-rig was made with and coded on an Arduino and 3 sensors. These were a light intensity module, pulse sensing module and temperature sensor.He rated his stress out of ten and the spikes in each module had a feint link with the rating.

FEEDBACKTHE MIGRAINE

13.



Matthew White“…Honestly, I work on the computer for a long stretch of time and I don’t take a break so I’ll

forget to drink water or something, and then I’ll get a migraine later, but this device could remind

me to so that’s cool...”

“…I wasn’t so sure at first, a device that I carry around and gives me live updates on my health,

sounds a bit like Star Trek to me but I’m liking it now, especially how easy I can strap it on my

wrist or latch it on my bag...”

“… it’s sad because the cooling sleeve was something that was just amazing and what I really needed, but I get that a cooling sleeve won’t help

every other person so, but I think the device is really neat, especially the live updating feature…”

Dr. Tim Cox“… I did think 8 different sensors in a small device would be over-ambitious … now you’ve reduced that number down, the device functionality seems more realistic now. But I have to emphasis the great potential this little device has in store…”

“…I do however wish to push the notion, I see you are going for the live update feature, I think if you could replace that with a continuous update instead…”

14.

IN-CONTEXT DEMO



Please click this link:https://www.youtube.com/watch?v=x7_6tdknYMs

https://www.youtube.com/watch%3Fv%3Dx7_6tdknYMs

https://www.youtube.com/watch%3Fv%3Dx7_6tdknYMs

15.

FEATURES



Please click this link:https://www.youtube.com/watch?v=QKXZfuUgdUE

https://www.youtube.com/watch%3Fv%3DQKXZfuUgdUE

https://www.youtube.com/watch%3Fv%3DQKXZfuUgdUE

MIE-TRAKR

16.



LIGHTWEIGHT CAR SEAT

17.



Project BriefDesign an ultra-lightweight and package-optimised car seat that does not compromise the style, comfort and ergonomics. The Car seat should provide a sense-of-occasion each time it is seen and used.

End-UserDrivers/owners of executive sports cars.

Model Making

18.

DEVELOPMENTTHE

Concept Selection:Photoshop Renders

PtLe

TrTl

SpNe

Final Sketches



19.

VIEWEXPLODED



Submersed Cushion Panels x8

Side Guards x2

Base

Seat Belt

Seat Cushion

Head Rest

Back Panel Shell

Pivot Mechanism

Bolts x12

Nuts x8

Total Weight: 18Kg

UltraLightweight

20.

Submersed Seating

Optimised Rear Passenger

Environment

Live Feedback Cushion Panels

@SohebH93

OMLET DOMESTIC INCUBATION

21.



Project BriefDesign an all-in-one chicken coop and brooder that educates the user on chicken and egg rearing. The design should bring the properties of farmland chicken/egg rearing, into the comforts of a domestic suburbia.

Client/End-UserClient - OmletEnd-user - Young Families

DEVELOPMENT AND MODELLING

First a full scale 3D sketch model was constructed to explore the form and

size of the product.

We then moved on to reene the design in smaller scale plastic modelling as well as

looking at details such as branding.











The nal model was constructed using a mix of MDF and laser cut acryllic. Sheet plastic was bent to create the all in one shell, while other plastic parts were etched with the

omlet logo.



omlet logo.








omlet logo.



omlet logo.



omlet logo.


Fabrication

SKETCH CONCEPTS Concept I

SKETCH CONCEPTSConcept II

22.

IDEATIONTHE INITIAL



23.

IDEATIONTHE INITIAL

?

Omlet was a young brand, who had already established a distinct style and prides themselves for sustainability.

Through dissecting the brief, it was ascertained that the final concept would have to bring together several products.

Fabrication of sketch models began after primary research into the sizes of chickens at different stages in their infant life, studies on the minimum dimensions for a sufficient coop area and package optimising the internal structure.



24.

ENGINEERINGTHE



Tilting Egg Turner

Can hold up to 12 Eggs

Simple Incubation Unit

Humidifier

Candler

Timeline Indicator

Brooding Lamp

Refillable Food and Water Feeder

Completely Modular System

Waste Tray

Brooding Coup

Can hold up to 8 four-week-old Chicks

25.

ENGINEERINGTHE



26.

SHACKTHE EGLU



BRAUN AUTOMATIC CITRUS JUICER

27.



Project BriefDesign a simple Citrus Juicer for the elderly, which can be operated single-handed and does the job, while also being unobtrusive in the kitchen environment.

End-UserElderly home owners.

28.

DEVELOPMENTTHE



12.

NotesBack and forth gears on the central shaft to recreate the motion of a person’s hand on a juicer

Bevel gears allow the rotary motion to be converted to vertical for the press to spin

Screw gear means the punch will follow the thread downward with a massive torque to squeeze the fruit down onto the press

Motor located at the bottom of the central shaft with an input power of 200W, an angular velocity of 10RPM and a torque of 20N/m

CADINITIAL CONCEPT

WORKING MODELCONCEPT III

Analysis on the Concept I/ Working Model

In this case holding the orange in place could be a little fiddly. And when it comes to gravity it would be the best if the juice comes down with the gravity flow. Plus after the working prototype we realized that the screw itself can move up and down and the gear train can be fixed in place. It just screws in that slider (which is also fixed ) so in order to move in which is the linear motion it has to rotate to screw in the thing, hence providing both linear and rotatory motion.

13.

Ideation sketching for mechanisms and testing with working sketch models

RACK & PINIONCONCEPT I

Concepts usually based on how only one hand could be used to squeeze where the force later could be considered to be coming from the motor.

For some of the concepts, looking if the force could be applied from a horizontal angle instead of coming from top or bottom vertically. But with some experi-menting realizing that the juice should fall in a natural manner as in with gravity, so vertical motion could be better.

The first concept on the top left is like where the orange is stationary and the two sides come and squishes the orange, so the juice just falls by gravity. Again the rack and pinion mechanism could be used for this one. So as the motor spins the pinion would move on the rack going forward and as it spins in the other direc-tion, goes backwards.

The concept above consist of two racks and a pinion going forward to push into the orange and squeeze, where the push thing would be connected to back and forth gears to provide the rotatory motion but with the back and forth the rotation would be in two directions as they half the teeth on each of the two parallel gears. With this concept the orange needs to be fixed (which is iffy) on the other end and the positive comes in and squeeze.

Juice Dish

Press Pivot

Pivot Gear

Orange rotates and presses into press

Motor

Orange Press(Stationary)

JuiceDish

Archimedes’ Screw

Orange Pressrotates in bothdirections

Rack & Pinion

Back & Forth Gears

Archimedes’ Screw

Thread

Orange

Rotation

Orange Corkscrews

onto the stand

Rack & Pinion drives the orange towards the press

Rack & Forth Gears

FruitPress

Motors

Rack Gears

PinionGears

9.

SPUR GEARS FOSFINAL CALCULATIONS:So after calculating a gear train value and the

specifying the spur gear variables such as the number of teeth, diameter and working torque and tooth stress on each gear, we were able to then calculate the factor of safety.

It was high; however, through FEA we can pinpoint the weak point with a lower yielding material and alter that through CAD as the stress value we calculated was the tooth stress value and not the Von Mises stress. So the stress on the base of the gears was not consid-ered. Hopefully through iterating, we can bring the Factor of Safety within the 3 to 4 threshold of success.

BEVEL GEARSFINAL CALCULATIONS:N₄

N₅

Above is our original configuration, but we decided against the double-action as it would require higher torque and the actual implementation of it would constrain the potential for design of the outer casing later. So to the right is our final configuration.

Finding e?

e= RPM out RPM in

rpm out from primary research = 60

rpm in = the rpm of the motor you require, assume a number

The following pitch diameters were made from assumptions.

N₄N₅

Mot

or

19.

29.

DEVELOPMENTTHE



MOTOR SELECTION:

24.

Basic Flowchart of Archimedes Screw Concept

Start

Place on Goblet

Prepare Orange

Is Orange Cut?

Motor Turns

Pinion Turns

Gear Chain Turns

Screw Turns

Juice is Extracted

Juice Filters Down

Is Orange Empty?

Slice Orange in half

Switch On

Gear Turns

Screw Moves Down

Macerator Turns

Motor Reverses

Remove Orange Skin

Motor Turns

Pinion Turns

Gear Turns

Gear Chain Turns

Screw Turns

Screw Moves Up

Motor Re-Reverses

Motor Reverses

Motor Turns

Gear Chain Turns

Screw Turns

Pinion Turns

Gear Turns

Screw Moves Up

Switch Off

End

BEVEL GEAR STRESSFINAL CALCULATIONS:

OMRON 2SMPP-02SENSOR SELECTION:

After comparing several sensors, we decided that the following pressure sensor would be most appropriate for our mechanism. The specifica-tions and information regarding the sensor are as follows (these were taken from the company website).

MEMS Gauge Pressure Sensor 2SMPP-02

Features: Small Size and Low Power Consump-tionDimensions: 6.1 × 4.7 × 8.2 mm (L × W × H)Characteristics: Superior electrical characteris-tics to capacitive type pressure sensors. Also Low Temperature Influence Offset voltage: -2.5±4 mVSpan voltage: 31.0±3.1 mVPower consumption: 0.2 mWSpan: ±1.0%FSOffset: ±3.0%FSType of pressure: Gauge pressureSensing method: PiezoresistancePressure medium: AirDriving method: Constant current driveDrive current: 100 µA DCPressure range: 0 to 37 kPaMax. allowable pressure: 53 kPaMax. drive current: 130 µA DCWeight: 0.17 gAmbient operating temp. range: 0 to 50°CAmbient operating humidity range: 15% to 95%Ambient storage temp. range: −30 to 85°CAmbient storage humidity range: 10% to 95%

http://www.omron.com/ecb/products/pdf/en-2smpp-02.pdf

25.

After several iterations of gear trains, with different calculations and variables, I was able to define the gear specifications and the motor within a theoretically working configuration.

The theoretical configuration then required adjustments after being bought into SolidWorks.

30.

DEVELOPMENTTHE



PUNCH BODYFINAL FEA ANALYSIS:

Tutor: Ramin AmaliModule: Mechanical

Design SimulationModule Code: UFME-

Design Scenario 1

Nominal Force: 60N

Force Vector: +y

Load Case: 1 of 1

Load Case Description: Load Case Description

Maximum Displacement Value: 0.00413893mm

Minimum Displacement Value: 0mm

Maximum Stress: 6.09968 MPa

Minimum Stress: 0 MPa

Material: AISI 316 Stainless Steel

Yield Strength: 240 MPa

FOS: 240 6.0968 = 40.98575663

Conclusions: After the mechanical simulation and analysis of the main Punch component, I found that the FOS was 10 times more than the required 3 to 4 range. This is a lower than the other components, but still in its own right, considerable high in comparison to the required range. Adding aesthetic surface features and making it more resolved in a semantic sense would reduce this FOS, however, a fancy surface aesthetic is not in keeping with the ‘Form-Fol-lows -Function’ ideology that Braun tries to embody in their designs. Hollowing out the com-ponent would be a more appropriate course of action for reducing the FOS. Unlike the other components, less materials being used in the manufacture of this component will not require more processes, and less wasted material, instead, injection moulding this component, may produce high start-up costs, but in the long run -which this product is in-tended for, considering how little Braun have changed their juicer design- will eventually break even the costing’s saved from using less raw material per unit.

60.

CAD CONCEPTINITIAL PHILIPS

Tutor: Ramin AmaliModule: Mechanical

Design SimulationModule Code: UFME-

This was my initial CAD Concepts for the exterior body and housing of the mechanical juicer components. The focus on this concepts was form, rather than the applicablility and feasibility as a juicer housing. The aesthetic form of the concept is very indicitive of the Philips design ethos, of subtle, natural and organic curviture and looked very similar to the Philips Viva Collection Airfryer (HD9220/20) and the Philips Senseo Coffee Pod system (HD7814/60). However, such features as the juice guard for the power screw and the rest of the internals was very crude. Furthermore, the ground clearance of the poureer was so small, that it could only pour into a 5cm cup -which after a brief bit of research- I found was more or less non-existant. Also, the access of the orange reamer would have required a removal of the entire top body and then the front door, which for an elderly person (the target end-user) was completely innapropriate. Other such constituants of the Assembly were not easily manufacturable, and the internal components were not fastened to the main body, with little considerations for this made, which is contrary to the main purpose of the excercise. I made recvisions to all of this in my final CAD and feel that the appropriate considerations have been utilised and answered. My New design is also concentrated on the ‘form-follows-function’ design ethos of Braun, rather than the aethetic form of Philips.

48.

After trying to emulate the Philips style comprised in their kitchen utilities range, I determined that too many compromises were required to include the automated system with the organic form. So, instead I decided to emulate Braun’s symmetrical and simple forms.

I then put each component through stress and displacement analysis’ to ensure they would not fail under the calculated nominal stresses.

After defining the faulting areas, I redesigned them to conform.

31.

ENGINEERINGTHE

Motor

Circlips

Pressure Sensor

BackBoard

Micro-Switch

Dome Shaft

Cup Sealling Ring

Dome Top

Punch Head

Punch Body

Swing Door

Cup

Power Screw

Dome Screw

BackBoardScrew

Runner

SpurGearTransmission

Gear Box

Swing DoorDowell

Cup Lid Seal

Back-And-Forth BevelGears

Shaft

BottomBrass Bush Base

Bottom BodyDouble

Bevel Gear

Bottom BoardBottom Bracket

CROSS-SECTIONAL BREAKDOWN

INTERNAL VIEW



32.

IN-CONTEXT



Take lid off from cup.

Remove cup, lidand then orange.

The juicer will automatically activate once the cup is in place and will stop after the second pressure sensor is activated.

Place cup onto pressure activated base, through the

swing doors.

Place sliced orange onto reamer.

Then pour and enjoy.

33.

AUTOQUICKTHE



B&Q GARDEN LOPPING SHEARS

34.



Project BriefRevamp the B&Q Telescopic Anvil Lopper TBL322 but for operation for the elderly. The design should be able to: Apply an output force of 4120N.

Cut to a diameter of 18mm.

End-UserElderly gardeners and home owners.

IDEATIONTHE INITIAL

Proposed Configuration

Isolating the 3 classes of leversLoad

Fulcrum

Effort

Load

Effort

Fulcrum

Load

EffortFulcrum

FIXED

-FX

-FY

FIXED

-FX FX

FY

FIXED

FX

FIXED

FX

FY

-FX

-FY

Free-Body Diagram

Initial Sketches

Concept 1: The Clamp

Concept 2: Tangent Linkage

Concept 3: X-Scissor

Concept 4: Xros Link

After isolating which type of lever would most efficiently perform the task of lopping branches and twigs, I had to calculate and define the dimensions, configuration and linkages that allows for both the 410N output force and an 18mm cutting diameter.

35.



4120N

DEVELOPMENTTHE

As a tool to help calculate and visualise the different angular and dimensioning variables, I used WorkingModel 2D. Through desk research it was defined that 55N was the minimal force that an elderly person could exert onto the handle of the shears.

After I composed a functional CAD Model Assembly in SolidWorks, I used the FEA package Autodesk Simulation Mechanical to simu-late likely-nominal and worst-case scenarios on each component.

Load Case: 1 of 1

Max. Value: 9328.75 N/(mm^2)

Min. Value: 11.7631 N/(mm^2)

Load Case: 1 of 1

Max. Value: 1.26345 mm

Min. Value: 0 mm

Von MisesStress

Scenario Parameters

Displacement

36.



37.

THE LITTLE BIG BAR

Blade Arm

Handle Arm

Rubber Handle



This design optimises the minimum nominal force an elderly person can exert to transfer to strong enough shearing force for cutting, whilst also adhering to the average weight an elderly person could carry. This was designed through iterations and development of the linkages, configurations and proportions and stress/weight analysis.

Female Link

Bracket

Male Link Bracket

Main Bolts

BladeBolts

Nuts BoltsRubber Spacer

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