ENGINEER
 
ABOUT ME

I am a recent University of Iowa graduate with a bachelor’s degree in mechanical engineering and a minor in mathematics. I have built a strong background in 3D-modeling and design of mechanical systems through exposure to Creo Parametric and finite element analysis software from both personal design projects and class assignments which I hope to use in my career. During my time at the university, I worked as an IT technician for the ITS Help Desk, troubleshooting and solving software problems for students and faculty members which gave me invaluable experience in customer support and communication as well as computer troubleshooting.

I have developed a great interest in complex geometries and how they can be utilized in the design of clever, efficient, stable mechanical systems to produce a superior or unique product. Interacting with these geometries, including involute, trochoid, and cycloid curves in gears, among other things, has become a passion of mine and has driven me to seek out new and exciting shapes, curves and underlying math relationships to fuel my designs.

The most ambitious and rewarding projects that I have worked on thus far include my Nixie-Tube clock, lathe design project and gear modeling project, which have each greatly improved my skill in relevant categories like 3D-modeling, circuit design, data analysis and prototyping of mechanical systems. Using modeling software, coding methods, new manufacturing techniques and experience with circuits in tandem with copious amounts of internet research, I constructed a decorative clock which displays time on cold cathode tubes. Similarly, I modeled my own lathe machine from scratch in Creo Parametric based on existing lathe technologies and have had to learn about many new precision machining techniques and tools in order to properly manufacture the lathe in my free time. While the lathe has required the largest time investment, I have learned more from my gear modeling project about the fundamental geometries driving perfect gear interaction and extreme gearbox requirements. I began each project without a mastery of all of the skills needed to finish it. Through execution of these hobby projects, I have been able to solidify and build upon my education, sticking with them to the end and finishing with new skills in my hypothetical toolbox.

I am currently seeking a mechanical engineering design position in which I can exercise my skills in modeling, machining, analysis and optimization. I enjoy the challenges that come with a new design project and am eager to learn more about design standards and techniques, improving efficiency, and manufacturing techniques to further improve my performance and experience. I would love to hear of any available opportunities that could fit well with the type of work expressed here, and I can be reached at davidjacullen@gmail.com or through the contact section!

MY SKILLS

Labor Skills

 

Arc welding

Soldering

Metalworking

Precision Measuring

Maintenance and Repair

Metal Casting

Reverse-Engineering

Woodworking

Mechanical Assembly

Technical Skills

 

3D Modeling

Finite Element Analysis

Linear Regression

Data Analysis

Mechanical Systems

Mechatronics

Gears & Gearboxes

Manufacturing Processes

Basic Circuit Analysis & Design

Electronics & Software

Coding in C, C++, Arduino

Computer Building and Repair

Electronics troubleshooting

Matlab

Creo Parametric

Microsoft Office

Image, Video, Audio Editing

Photoshop, Lightroom, Premiere, Audition

Digital Photography

 
 
SHOWCASED PROJECTS
NIXIE TUBE CLOCK
LATHE DESIGN
RUBIK'S CUBE DESIGN
GLOBOID WORM GEAR
REDDIT R/PLACE MANIPULATION
LATHE DRIVE GEARBOX
ARC WELDER
STEREO SPEAKER DESIGN
IMPELLER WATER PUMP

1/12

1/11

1/9

1/6

1/3

1/4

1/7

1/11

1/9
TIMELINE
2005 - PRESENT
BANDSAW MODIFICATION
TORNADO
CYLINDRICAL WORM GEAR
GEAR
RACK
COASTER ACCELERATION
TREE TABLE
CHAIR
LATHE THREAD GEARBOX
LATHE DRIVE GEARBOX
HELICAL GEARS
GEAR PUMPS
GLOBOID WORM GEAR
SPUR GEARS
CAR WINDOW REPAIR
HEADPHONES TILE MOD
MACHINIST TOOLS
RAILROAD RAIL
ANVIL
SOLAR ECLIPSE
COFFEE
ROASTER
TINTED
GOGGLES
R/PLACE
MANIPULATION
NIXIE
TUBE CLOCK
POWER TOOLS
RFID
DOOR LOCK
MAGNETIC
ARM FRAME
LATHE DESIGN
MECHANICAL
HEART LOCKET
IMPELLER
WATER PUMP
INTERESTING
INTERNET ASSETS
POLOLU 3PI MAZE TRAVERSAL
EINSTEIN'S
RIDDLE PROGRAM
SOLAR
FRESNEL LENS
SOFT METAL
FOUNDRY
BUILDING
MY COMPUTER
ENGINEERING EQUIPMENT TESTING
BICYCLE ENGINE INSTALLATION
PUMPKIN
CARVING
SENIOR DESIGN PROJECT
METAL SCRAP
SOLAR SHADE
EAGLE PROJECT
COPPER
HEATSINK
BATCH & SCRIPT CODING
NIXIE CLOCK
CODE
ARC WELDING
REPAIRS
ARDUINO-BASED PROJECTS
TREE TRUNK
TABLE
SWORD MODEL
PENDANT
REPLICATION
COFFEE
GRINDER STABILIZER
RASPBERRY PI
ARC WELDER
& MELTER
RUBIK'S CUBE
DESIGN
"TOP SECRET"
SPINNING TOP
CASTING THOR'S HAMMER
ELECTROMAGNETIC THOR'S HAMMER
POPSICLE STICK
TOWER
PUZZLE SOLVING
CATAPULT
FABRICATION
MY EAGLE PROJECT
SONY HEADPHONES MOD
ELECTRONICS
RIGGING & REPAIR
SMALL WIRE
SOLDERING
SLR
PHOTOGRAPHY
HARD DRIVE DISSECTION
LAPTOP HARDWARE REPLACEMENT
CAST IRON
RE-SEASONING
MOTORIZED
BICYCLE
STEEL KNIFE
SALT IRON SAND SEPARATION
REMOTE CONTROL
CAR
GEOCACHING
3D DESIGN & ANIMATION
VIDEO GAME
PROJECT
SCOUTING
EXPERIENCE
WAND CARVING
KATANA
MODIFICATION
JEWELRY METALWORKING
MEDIA
EDITING
POTATO
CANNON
STEREO
SPEAKER DESIGN
HIGH-POWER
LASER
IPOD
PART REPLACEMENT
CERAMICS
SWING SET RESTORATION
SAMSUNG PHONE REPAIR
FIRST TECH
CHALLENGE
STEEL
MACHETE
SEGWAY
REPLICATION
SCIENCE FAIR
PROJECT
 
 
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