Mechanical design engineer xanely dsouza portfolio

XANELY DSOUZA

PORTFOLIOMechanical Design

XANELY DSOUZA

[email protected]://www.linkedin.com/in/xanely-dsouza-93b043112/

Contact

https://www.linkedin.com/in/xanely-dsouza-93b043112/



Softwares

Interests

Domain

About

Languages

Mechanical Product Design Engineer and a Budding Amateur Cook

EnglishHindiKannadaTuluKonkani

1 Understand2 Read and write only3 Fluent4 Proficient5 Native

Siemens NX

Solidworks

PTC Creo

ANSYS

MS Office

Photoshop

Die-cast part design

Rendering

Plastic part design

GD&T

Sheetmetal part design

Stack-up analysis

Architecture maps

Mechanical EngineeringNMAMIT , Nitte2014-2018CGPA- 9.66

Strength

Education

Weakness

ProactiveTeam player

VocabularyHand sketch

Cooking Workout Graphic Design

CONCEPTS

Toothbrush Concept Design

Problem Statement

In India alone it is estimated about 1 billion toothbrushes, representing more than 25000 tonnes of waste are discarded & end up in landfills every single year.

These toothbrushes are made from combination of plastic(made from crude oil) & rubber for the hand piece, nylon for bristles and mix of plastic & cardboard for packaging.

Currently none of these items are bio-degradable and therefore they remain in landfills indefinitely.

Worst they end up in our oceans & washed up on our beaches or consumed by marine life.

If they are burnt, they release a combination of toxic and green house gases.

Toothbrush Concept Design

Need analysis

Durability and usability are the most important things.

Design should have good materials for both the body and the head of the brush.

Easy cleaning and drying after use.

Replaceable bristle head to minimize landfills since bristles are the first to wore out.

Aesthetically pleasing and reasonable price.

Size should be comfortable to hold and grip.

Target Design Specification

SlNo

Specific Importance( on scale of 5 )

Unit Current Value Target Value

1 Size 4 cm3 - -

2 Aesthetics 3 Subject 3 4

3 Easy to clean and dry 4 Subject 4 5

4 Long lasting handle 5 Subject 2 4

5 Replaceable bristle head 4 Subject 2 4

6 Price 5 Rupees - -

7 Eco-friendly 4 Subject 2 4

Concept Sketches

Plastic handle with curved profile

Replaceable bristle head of plastic material

Snap-fit

Tongue cleaner (rubber)

Rubber grip with serrations

Bristles are made up of Nylon

Design-1

Concept SketchesDesign-2

Wooden handle with curved profile

Replaceable bristle head made up of wood

Threaded fastener

Tongue cleaner(Serrations on wood)

Rubber grip with serrations

Bamboo fiber bristles

Depression underneath for gripping thumb

Hole for hanging & drying

Concept SketchesDesign-3 Hole for hanging

& drying

Full wooden body

Flexible and slender neck

Nylon bristles

Rubber tongue-cleaner

SelectionCriterion Wt

%Design-1 Design-2 Design-3

Size 10 + + -

Aesthetics 12 + + -

Easy to clean and handle 10 - + +

Long lasting handle 15 - + +

Easy to dry 10 + + -

Replaceable bristle head 8 + + +

Eco-friendly 15 - + +

Price 20 + - +

Sum(+) 60 80 68

Sum(-) 40 20 32

Total 20 60 36

Rank 3 1 2

Final designCAD

Final designRENDER

Inspiration for handle design

Nylon or bamboo fiber bristles

Tongue cleaner

Final designRENDER

Depression for gripping thumb

Hole for hanging & drying

Vegetable peeler concept

Problem statement

Currently available peelers are difficult to grip in one hand.

Peeling rate is low since holding conditions are not so comfortable.

Difficult to remove peeled waste which gets stucked in the gap between the blades.

Most of the blades are not replaceable.

Sharping the blade edge is not easy and not possible is some peelers.

Need analysis

Minimal design with less material.

Replaceable blade.

Better grip.

Long lasting blade and durable body.

Faster peeling rate.

Can accomodate different sets of blades for different purpose.

Vegetable peeler concept

Concept Sketch

Slender hollow cylindrical bodyTo insert index finger for better grip with replaceable blades

Enough gap b/w blade and body of the peeler

Final design

Screw Clearance hole

Insert Index finger here

Exploded view

Cushioning is provided inside the peeler body

Sufficient gap is provided between blade and peeler body to remove peeled waste easily

Render

Pencil sharpener concept

Problem statement

Currently available sharpeners are difficult to grip for children.

Removal of waste is not so easy.

Design is not optimised for children.

Need analysis

Minimal design with less material.

Replaceable blade.

Better grip.

Long lasting blade and durable body.

Faster peeling rate.

Can accomodate different sets of blades for different purpose.

Pencil sharpener concept

Concept Sketches

Conical body

Serrations for grip

As the body is not completely enclosed, it is easy to remove pencil waste by a blow of air

Final design

Screw

Blade

Body

Serrations

Blade is prevented from sliding by an undercut in the sharpener body incase screw loosens

Part design

Plastic, Die-cast and Sheetmetal

Plastic part design Description RC Top Cover

Material ABS

CAD Software NX Ver 11

No. of features ̴70

Design time ̴15 hours

o Reverse Engineered parto Surfacing is not used in modellingo Nominal wall thickness= 1mm

Plastic part design Cut sections

Plastic part design Description Chainsaw side cover

Material ABS



Design time ̴12hours


Plastic part design Description Mouse top cover

Material ABS




o Reverse Engineered parto Surfacing is used in modellingo Nominal wall thickness= 1mm

Hybrid Modelling

Surfacing Solid Modelling

Plastic part design Description Protective cover

Material ABS





Die-cast part design Description Chainsaw engine bore

Material Aluminium


No. of features 90



Die-cast part design Cut sections

Sheetmetal part design Description LED TV Back panel

Material Aluminium sheet




o Reverse Engineered parto Sheetmetal is used in modellingo Nominal wall thickness= 1mm

Cut sectionsSheetmetal part design

Assembly design

Assembly design Description Headtorch Assem

Material ABS, sodalime glass


No. of parts 6


o Reverse Engineered parto Nominal wall thickness= 1mmo Surfacing is not usedo Part list: Main body

Battery casingCasing coverFace capReflectorLens( sodalime)

Exploded view

Lens

ReflectorFace cap

Casing coverBattery casing

Main body

Assembly design Cut sections

Reflector

Face cap

Casing cover

Battery casing

Main body

Assembly design Description Heavy-duty scissor

Material ABS, stainless steel


No. of parts 9


o Reverse Engineered parto Surfacing is not usedo Part list: Thumb handle

Finger handleBalance faceBlades(2)Washers(2)Adjusting screwLock-nut

Exploded view

Blades Adjusting screw

Washers

Lock nut

Balance face

Finger handle

Thumb handle

Assembly design Description Hydraulic pump

Material Aluminium, brass, rubber


No. of parts 11


o Reverse Engineered parto Surfacing is not usedo Part list: Body

End plateDrive end plateDrive shaftNippleHex bolt and nut(M10)Idle shaft and Idle gearDrive gearLag-sleeve assemHousing sealPin 4*6

Drafting

Graphic design

Thank you for taking your time and going through my portfolio

[email protected]://www.linkedin.com/in/xanely-dsouza-93b043112/

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Mechanical design engineer xanely dsouza portfolio

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