Engineer Design

Tim Chao

* ***** *****, ******, ** ***** ******@*****.*** 949-***-****

3D CAD Portfolio: http://tdceng.weebly.com/

Experience

Bigelow Aerospace Las Vegas, NV

Mechanical Design Engineer Nov 2015 – Present

Pioneers in creating the first habitable expandable spacecraft

•Design a small-scale bladder for long duration leak and window seal testing as well as hydro bladder for burst testing

•Calculate stress-strain and design restraint layer straps

•Present pros and cons of NASA’s original Transhab design versus previously designed Bigelow pressure vessels

•Seek and contact potential subcontractors capable of RF welding polyethylene materials

•Research new materials or composites to replace historical polyethylene film design and request samples

•Design a build platform for technicians for assembling restraint layer, adhering to OSHA safety regulations

Greenhouse Apps, Inc. Taipei, Taiwan

Software QA Engineer Jun 2014 – Aug 2015

Premium development studio for iOS and Android mobile platforms

•Design and manage integration and regression test plans

•Stress test the application on different devices to find device specific problems

•Use of PivotalTracker to track new bugs and progress of new features ready for testing

•Work with developers to determine cause and solutions of bugs and crashes

•Focus on user goals to assure the highest quality app experience possible with seven years of iOS personal user experience

•Agile scrum methodology

•Data mine news and blogsites for journalist contact information and write them to get press coverage

L’Garde, Inc. Tustin, CA

Mechanical Design Engineer Jun 2012 – June 2014

Aerospace/Defense government contractor specializing in gossamer structures

•Design mechanisms for NASA’s Sunjammer TDM Solar Sail for space deployment, an expandable solar powered spacecraft

•Develop test methods, samples, procedures, and hardware for vibration, thermal, and vacuum environment simulations

•Responsible for creation and machine optimization of multi-gore soft-good DXF files for 89ft telescoping boom structures and 127ft span folding sails to be cut on a 40ft long laser cutting machine

•Work with technicians to develop manufacturing processes for handling and construction of Dupont thin film materials Kapton and Mylar as thin as 1.4 micron, light enough to levitate from the heat off your hand

•Use of Solidworks PDM for file management and design document release

•Conform to ASME Y14.100-2000 standards for engineering drawings

•Peer reviewed engineering drawings, provided tolerance analysis and feedback for documentation release, complying with AS9100 standards

•Determine requirements for electrical feedthrus and connectors

•Use Atlassian products Confluence and Jira for task and priority organization

•Designed a blackbody box using thermoelectric coolers for infrared tool calibration

Classic Performance Products Anaheim, CA

Mechanical Design Engineer Nov 2010 - Jun 2012

Classic muscle car part design and manufacturing for restoration/modification

•Reverse-engineer classic car parts in Rapidform XOR3 and Solidworks 2012 using fully-defined sketches for easy part revisions

•Design performance upgrades with perfect fitment and clearances with factory parts using solid modeling to determine how features are spatially related, rapid prototyping, as well as distortion considerations from manufacturing processes

•Use 3D printing to create pre-shrunk cast parts for die-cast mold making

•Create bill of materials, drawings, and do part inspections for parts from overseas manufacturers

•Design parts with manufacturing/cost/material considerations, analyzing benefits of being machined, extruded, nesting/plasma cutting sheet metal and bending, forged or cast parts with draft or bent tube parts

•Optimized a wheel stud pressing procedure and reduced assembly time from ten minutes to thirty seconds

•Designed a line of highly anticipated spindle that was featured and extremely well received CPP's booth at SEMA 2012, now a top selling product line

•Check manufacturing tolerances of samples using machinist tools, such as but not limited to height gauges, 1-2-3 blocks, and micrometers

TDC Computers Diamond Bar, CA

Independent Contractor Jun 2005 – Oct 2010

•Administrator for clients' computers, addressing their performance and security needs

•Computer hardware, software, and network troubleshooting, enhancements, and upgrades

•Performance, quality, and usability testing to ensure efficient system operation

Education and Certification

California State University, Fullerton Fullerton, CA

B.S. in Mechanical Engineering Dec 2010

Certified SolidWorks Professional, Dassault Systèmes

CertificateID: C-6ZX7FKNASV Feb 2012

Software Proficiencies

Solidworks, PDM, and COSMOSWorks FEA 2007-2015, AutoCAD 2005, MS Office Suite 2013, Google Office Suite, OSX Office Suite, Adobe Photoshop CS6

Personal Automobile Hobby

Time-lapse engine displacement increase project, May 2009:

http://youtu.be/F-yose_yjsM

Time-lapse engine rebuild project, December 2011: http://youtu.be/6Tp1rzVxpIc

•Diagnosis of engine problems

•Complete suspension service, including lowering of vehicles

•Self-taught engine and transmission removal and installation

•Understanding of car audio and use of wiring diagrams to wire independent of factory systems

•Knowledge of all car maintenance

Languages

•Proficient in spoken Mandarin

•Ability to read and write conversational Mandarin

•Attended Chinese school throughout grade school

Miscellaneous

•Piano player since age 4

•Became a professional poker player in Las Vegas after work

•Ability to type at 108 words per minute

•Hold a dual citizenship with Taiwan and the United States

•Built and configured the Makergear M2 open-source ABS plastic 3D printer

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