Engineer Mechanical
Resume:
John Kolar
Sunnyvale, CA ***86
Ph 408-***-****
Cell: 408-***-****
Email: ****.*****@*****.***
SUMMARY:
Over twenty years of mechanical design engineering for both low volume and high volume, low cost production in the computer electronic and scientific instrumentation industries. Experience and major accomplishments include:
Design experience: Sheet metal, Injection molded plastics, Magnetic circuits, Cast metals, Precision mechanisms, Electro-Mechanical Packaging, Pneumatics, welded assemblies, tooling.
Component and system test using a variety of tools- Laser Doppler Vibrometer, Humidity probes, Oscilloscope, Dynamic Signal Analyzers, Acoustic measurement.
Automation of testing using A/D converters, data loggers and development of software for data collection and analysis.
CAD systems: Solidworks, Autodesk Inventor, HP SolidDesigner, HP Annotator, HP ME10, AutoCad, Computervision CADDS4X, Cadkey.
Programming and software: MS Visual Basic 6, VBA, Fortran, MS Office, Windows 98, Windows NT, MS Access, etc.
5 year experience with SolidWorks, latest version 2009
01/2012 to Present: HDI3D, Los Gatos CA -Mechanical Design Engineer (Contract Position)
Prototype design for mechanical housing and mounting of optical elements of a laser based 3D HD television projector.
Sheet metal enclosure for optical projector assembly.
Mechanical design of a rear projection 120 inch screen TV that utilizes the laser based projector.
03/2011 to 12/2011: Juniper Networks, Inc.
Design of 1U blade for network router devices including:
Sheet metal enclosure
PCB guides and mounting
Board layout component height restrictions, keepout areas
Device inject, eject and latching mechanisms
02/2010 to 03/2011: HDI3D, Los Gatos CA -Mechanical Design Engineer (Contract Position)
Prototype design for mechanical housing and mounting of optical elements of a laser based 3D HD television projector.
Sheet metal enclosure for optical projector assembly.
Mechanical design of a rear projection 120 inch screen TV that utilizes the laser based projector.
03/2008 to 01/2010 : Juniper Networks, Inc. Sunnyvale CA -Mechanical Design Engineer (Contract Position)
Mechanical design of 2U network router involving sheet metal enclosure , device inject, eject and latching mechanisms, PCB layout including component height restrictions, keepout areas
Product continuation engineering
Product design flaw trouble shooting
9/24/2007 To 03/08: Xyratex International, San Jose, CA -Mechanical Design Engineer (Contract Position)
Design of robotic end effectors for hard disk test equipment
Design of structural steel platforms for large (over 100 square feet) clean room automated test stations.
Layout of clean room automated test stations.
12/1/2006 to 9/15/2007: Sysview Technology Inc, San Jose, CA -Mechanical Design Engineer
Design of low cost projection units for HDTV applications.
LCOS projector
DLP projector
Test fixtures for LCOS optic assemblies and components.
Extensive use of SolidWorks
5/15/2006 to 11/1/2006: Reactivity, Inc., Belmont, CA
Mechanical Engineer/Platform Development Engineer (Contract Position)
Electromechanical design for high end network server manufacturer, including custom PCB design, PCB mounting, PCI bracket design, cables.
Thermal analysis of customized server assemblies.
Internal modifications to server hardware to accommodate custom hardware.
PCB design using Orcad, CadStar
9/16/2005 to Present: Software consulting, various companies
9/16/2002 to 04/2005: Owner, Retail Business
04/93 to 07/01: Maxtor/ Quantum Corp. Milpitas, Ca
Mechanical Engineer
Responsible for design of filtration and sealing devices for 2.5” disk drive product
Designed assembly tooling for pre-production 2.5” disk drive product
Participated in design of automated burn-in chamber for 3.5” hard drive, including sheetmetal enclosure, slide guides for inserting drives into fixture, eject mechanism for removing drives from fixture.
Participated in many pre-production disk drive builds at overseas factory
Responsible for correcting production issues (design, quality, process, etc.) at overseas factory for 3.5” disk drive products
Resolved customer integration and quality issues
Responsible for many environmental and performance tests during the development of 3.5” disk drive products, including humidity time constant, temperature and contamination sensitivity, VCM performance, crash stop, spindle performance. Performed environmental and emitted vibration, acoustic testing.
Close to a year accumulated time at Panasonic’s MKE Ipponmatsu Disk Drive assembly facility during product development to help develop mechanical assembly processes and failure analysis during Pre Production builds. Also traveled to Ipponmatsu during production builds if problems developed needing Quantum engineering support.
Design of Windows programs for use as interface between data collection devices, signal processors, signal generators and a host computer. Programs were designed to provide a user friendly interface for the operator, automate data collection and store results to disk for later analysis.
01/93 to 04/93: LaserByte Corp., Sunnyvale, Ca
Contract Mechanical Engineer
Designed assembly fixtures for 3.5" optical disk drive components, including VCM, spindle and optics and optical detectors
06/90 to 01/93: LaserTape systems, Campbell, Ca
Mechanical Engineer
Designed breadboard optical head, positioning and mounting of optical components, coarse positioning system for optical tape drive
Designed overall packaging for Optical tape Drive product
02/88 to 06/90: Optimem Corp., Mountain View, CA
Manager of Mechanical Engineering
Provided mechanical engineering support of all current products, 5.25” and 12” optical disk drives .
Designed automatic disk loading mechanism for a jukebox mounted 12” drive.
Initial conceptual design of second generation 12" Optical disk drive.
Supervision of two mechanical engineers and one mechanical designer.
11/82- 2/88: Optimem Corp., Mountain View, CA
Mechanical Design Engineer
Design responsibility for 5.25” optical disk drive:
Optics mounting and adjustment schemes
Brushless DC spindle motor (excluding magnetic circuit)
Mechanical design of linear voice coil motor (awarded patent as co-inventor of this design)
Linear optical encoder for VCM positioning
Base castings, packaging, cabling, etc.
Design responsibility for 12” optical disk drive:
Mechanical design of rotary voice coil motor for 12" optical disk drive
Brushless DC spindle motor specification and packaging
Base Casting
Autoloader
6/78- 11/82 Mechanical Designer, Spectra Physics, San Jose, CA
Designed injectors, detectors and associated pneumatics and packaging for a high end Gas Chromatograph product.
Design of Autosampler (small precision mechanism) for Gas Chromatograph.
Directed technicians in assembly of all GC assemblies.
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