Mechanical Engineer Design

JOHN FISCHER

Sunnyvale, CA *****

408-***-**** (Cell) ****.*.***********@*****.***

OBJECTIVE: Mechanical Design Engineer of Aerospace Structures and Mechanisms

Creative ability with extensive experience in the area of aerospace structures and packaging of electro-mechanical

systems. Extensive experience using 3D parametric design software to create parts, assemblies, and drawings for

manufacture. Extensive knowledge of machining, materials, epoxies, fasteners, (GD&T) ASME Y14.5 standards.

Good working knowledge of stress (FEA experience), thermal, material and component specification as well as

mechanisms. Inventing and fabricating working prototypes. Committed to mentoring others.

TECHNICAL SKILLS

Autodesk Inventor, Solid Works, UGX (Unigraphics), Algor FEA, Python programming, Microsoft suite

PROFESSIONAL EXPERIENCE

MECHANICAL DESIGN ENGINEERING, CONTRACTOR

CORETECHS/GrabIt Santa Clara, CA, August 2014-Febuarey 2015

• Mechanical Design Support, Electro Adhesion Technology –Using Solidworks, designed a series of LED

panel assemblies that required the complete diffusion of visible light. This was necessary to insure the

correct functioning of a digital imaging positioning system. This task was achieved by using a number of

analytical and experimental approaches as well as the extensive use of mock-ups. In addition, designed and

developed hardware to aid the assembly of GrabIt’s hardware. GrabIt’s management was satisfied with all

performance and cost targets.

Natana Livermore, CA, January 2014-July 2014

• Vibration and thermal Control of Specimen Holder, Brookhaven National Laboratory - Designed

and developed two stage thermal electric cooler (TEC) mounting system to cool specimen holder to within

77 degrees kelvin. Specimen holder must operate in high vacuum environment. This design effort also

requires developing a vibration control mechanism to dampen all vibrations from instrument. Brookhaven’s

senior management was pleased with the design presented during a critical design review. Design is

currently being used by Brookhaven National Laboratory’s new Hard X-ray Nanoprobe (HXN).

T&K MACHINE Livermore, CA, June 2013-Present

• Precision Right Angle Milling Attachment - As time permits, designing and developing a new right angle

milling attachment for Computer Numerical Control (CNC) Milling Station. Main body of tool has a unique

shape which uses a novel stiffening scheme that insures low mass with high stiffness and good damping.

Unlike other mill attachments this tool is light enough that it can be installed on milling machine’s

automatic tool changer. By attaching the right angle milling attachment to the automatic tool changer the

milling machine will automatically index the tool.

GATAN CORPORATION Pleasanton, CA, March 2012 - May 2013

SENIOR MECHANICAL ENGINEER

• Digital Camera Mechanism Used in a Transmission Electron Microscope - Designed and developed,

using mock-ups and 3D design software, an electro pneumatic insertion/retraction mechanism for inserting

a charged coupled sensor (CCD) into a high vacuum environment. Designed a unique rectangular

pneumatic piston, which allows all of the electronics to be contained within the piston itself. This results in

a very compact camera eliminating additional external electronics. A unique x-ray shielding design was also

developed, using two interlocking lead sleeves that are captured within the camera body. This camera is

called ‘OneView’ and can be reviewed on Gatan’s product website.

LOCKHEED MARTIN SPACE SYSTEMS COMPANY (LMSS) Sunnyvale, California, 1996 – 2011

SENIOR MECHANICAL ENGINEER, FLEET BALLISTIC MISSILES (LMSS) 2006 - 2011

• Range Safety Electronic Package -Designed electronics chassis replacement for missile self-destruct

system. Original chassis failed due to unusually high vibration environment. Using mass and size envelope

of original, designed novel stiffening scheme using 3D design software and ran many different design

iterations. Used finite element analysis tool (FEA) to verify each one. After analysis concluded that a series

of integrally machined ‘I’ beam shaped stiffening webs would be needed. Working with manufacturing and

machine shop manager, created a series of stereolithography mock-ups to review manufacturing approach.

Chassis easily passed all shock and vibration testing. Chassis design eliminated the use of shock isolators

and the associated cost of analysis. Performed stack-up analysis to insure correct fastener length was used.

Prepared detailed assembly drawings for manufacture and release in company electronic product

management system. Chassis is currently beings used in flight vehicles.

• Extractor Tool -Invented a mechanism that prevents the bending of electrical contact pins while

extracting the electrical connector from electronic boxes and test equipment. Designed to meet

requirements including narrow spacing, ergonomic, and able to withstand thousands of extractions. Can be

used on any D-sub connector ranging from 9 to 37 pins. Tool uses a novel two stage mechanism which is

operated by pulling a lever. Personally fabricated first two prototypes using lathe and milling machine.

Created all assembly drawings for manufacturing. Received award from company for invention.

• Invented Manufacturing Tooling for Critical Space Electronic Package -Designed pallet and rotation

mechanism that allows technicians to easily move and access 300 lb. electronic boxes, reducing assembly

time and corresponding cost by fifty percent.

• Designed Shock Test Apparatus for Critical Missile Structure - Worked with Systems engineering to

design a test apparatus used to measure deflections during explosive shock event. Performed stack-up

analysis to insure correct function and load transfer. Supervised its usage during a critical validation test of

a flight vehicle component. Hardware worked as designed and test data closely matched the deflection

estimates.

MECHANICAL ENGINEER, HELIOSEISMIC MAGNETIC IMAGER (LMSS) 2004-2006

• Imager Lifting Fixtures -Using static analysis calculations and 3D modeling software, created

fixtures that lifted sensitive, intricate optical imaging equipment for attachment to the currently orbiting

NASA Solar Dynamic Observatory (SDO), which determines solar weather. Fixtures provided support and

balance to the instrument while meeting demanding geometric, mass, and ease of use requirements.

MECHANICAL ENGINEER, PAYLOAD LAUNCH VEHICLE (LMMS) 1996 - 2004

• Cabling -Using I-DEAS 3D design software, created all major routing paths for cable assemblies used in

third stage of the interceptor missile. In addition this effort required creating a high fidelity 3D model of

the third stage vehicle structure. Working in coordination with Flight Sciences, 3D models of the flight

electronic packages were then added and cable paths created. These cable routing paths were then used to

design the flight cables. These cable assemblies were successfully used on all seven flight vehicles

• Missile Structure -Using I-DEAS 3D design software and mock-ups redesigned a portion of the third

stage structure to accommodate a new electronic box which is critical for missile guidance (IMU: inertial

measuring unit). This effort required working with outside vendors to insure all design criteria were met.

The end result was a design that greatly reduced instrument calibration times prior to missile launch. This

design change was done on the remaining eight missiles, all of which flew successfully. Received award for

helping program meet all performance and schedule goals.

EDUCATION

University Of Illinois, BSME

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