Andrew Parmar Design Portfolio March 2014

Copyright © 2014 Andrew Parmar

Andrew Parmar

Design Portfolio


To my mother. The unlearned architect.


Inspiration & Background

Art

The ability to create beauty for the sole purpose of human appreciation. Life would be barren

without it. The x factor.

Engineering

Logical thinking and problem solving. The art of science is the application of scientific principles to constantly improve the quality of life.

Entrepreneurship

Practicality is at the base of my beliefs. Great ideas and inventions need to be brought to users.

B.Sc. Mechanical Engineering San Jose State University 2012

w/ Honors

Academic Concentration: Design

Interests: Concept Development Mechatronics/Robotics

Materials

Industrial Design Prototype Fabrication

CAD SolidWorks

Pro/Engineer Wildfire

Creo Parametric Pro/Mechanica

AutoCAD


Spherical Drive System, Mechanical Engineering Senior Project

1st Place Winner

Best Technical Presentation American Society of Mechanical Engineers, Student Design Presentations. Vallejo, CA (2012) Finalist at the Collegiate Inventors Competition, US Patent Office, Alexandria, Washington D.C.

(2012) 3rd Place at the Silicon Valley Innovation Challenge, Elevator Pitch, SJSU (2011)

Awards

The spherical drive system (SDS) is an electric motorcycle that maneuvers on spheres instead of traditional wheels. It couples MEMS gyroscopic

sensors, accelerometers, and a computer control

system to achieve stability and omnidirectional

maneuverability absent in traditional motorcycles.

www.sphericaldrivesystem.com

Concept Designer & Mechanical Lead

- 55 in. Wheel base. - 22 in. Spheres

- 450 Lbs - 6 Stepper Motors – 3/Sphere - Dual swing arm suspension - Steer by Wire - Battery Chemistry - LiFePO4

- Closed loop control system for self

stability.

Specifications


Spherical Drive System - Prototyping

My team and I developed techniques for creating large composite spheres of layered carbon fiber, fiber glass, and an industrial polyurethane coating.

Over a two year period, we were able to develop a rolling chassis prototype as seen in the lower right photograph.

Dual hoops with ball transfers above and below centerline, capture the sphere in place.


AVID Technologies – Button Study

Avid Technologies approached Vavni to provide a revised

solution for button actuation on 5 modules of the their new flagship mixer as shown in the module below.

Foam Compression Solution Elastomeric Mold Solution

• Use of Poron urethane foam as the compression agent.

• Greater force control • Reduced button click noise

• Use of Shore A Silicone injection molded parts.

• Provides greater tactile feedback with snap action as elastomer buckles.

• Increased apparent tactile feel.

Light pipe

Foam Elastomer

Key caps


PLX Technology

Project Argo was a turnkey development endeavor in providing PLX technology hardware for their proprietary Capella chips. The 1 RU chassis uses QSFP interface with extended PCIe support.

The unit required extensive analysis during the design process via tolerance and FEA structural studies alongside sheet metal design. In addition I also performed thermal calculations while helping the team

source the right heat sink for the Capella chips.


PLX Technology – Fan Module Design Analysis

Blind Mate USB: Tolerance Study


Symmetricom Inc.

This project at Symmetricom involved working with board layout engineers and Symmetricom

marketing to develop the PCB fab layout. Tasks involved: • Component sourcing and selection • Sheet metal design

• Cable routing • Silkscreen design • Creating technical drawings.


Andrew Parmar | Mechanical Engineer

p: +1 408 500 6097 e: [email protected]

Andrew Parmar Mechanical Engineer | Designer

p: +1 408 500 6097

e: [email protected]

Mechanical Engineer | Designer

p: +1 408 500 6097

e: [email protected]

Andrew Parmar