JARED P. BRETONMECHANICAL DESIGN PORTFOLIO
Background I am a student at Worcester Polytechnic Institute in
I study mechanical engineering with a concentration in
I was a member of the WPI Varsity football team from
I am a member of Lambda Chi Alpha mens fraternity.
My work experiences include working:
As a Mechanical Designer at Sparton Technology machine shop in
Hudson, New Hampshire.
As a CAD Designer at KettlePizza, LLC in Groveland,
This portfolio is a collection of some of my mechanical design
work at Sparton, KettlePizza, and at WPI. For more information
please see either my resume or my LinkedIn page (link posted
PTC Creo Parametric Experience
In the Spring of 2014, I took an advanced modeling class that
used PTCs Creo Parametric 2.0 modeling software. For our first
project, my partner and I:
1. Modeled the components of the EcoMotors OPOC using the
2. Assembled the engine using coincident, pin, and cylinder
joints to run motion analysis on the pistons and force analysis on
the crank shaft;
3. Determined the timing cycle for airflow into and out of the
piston housing cylinders.
Determining Air Flow using Crank Angle
Graph of Engine Timing as a Function of Crank Angle
Determining Crank Shaft Open vs. Closed Position Using
Piston Motion vs. Airflow Diagram
3D Printed Mold
For our second project, my partner and I modeled a minion from
the movie Despicable Me and made a 3D printed soap mold of him.
When designing the mold, we had to take into consideration
appropriate draft angles, spatial limitations, and printing
3D Printed Soap Mold Soap Minion made using Mold
Wind Turbine Design Project
To effectively design and analyze a wind turbine mainshaft and
tower using the Vestas V52 model for reference.
Construct free body diagrams of the mainshaft, tower, rotor, and
entire wind turbine.
Use singularity functions to identify critical sections on the
Determine normal and shear stresses at critical points on the
Calculate von Mises effective stresses.
Calculate cycles to failure and shaft deflection.
My Work at Sparton Technology
At Sparton Technology, I work primarily as a Mechanical Designer
using SolidWorks to design NEMA 4X (water-tight) and 6P
(submersible) rated electrical enclosures using sheet metal
construction. Some of my responsibilities are:
Providing SolidWorks parts and working assemblies of all
components used to manufacture the enclosure.
Providing properly dimensioned and labeled engineering drawings
of all components and assemblies. This includes providing a Bill of
Materials, appropriate notes and detailing, and accurate welding
Designing databases using DriveWorks Xpress that automate the
production of CAD models and engineering drawings of NEMA rated
New product development for a more cost-effective, hinged
submersible enclosure that provides larger profit margins, utilizes
efficient design and manufacturing methods, and enhanced customer
This is my current project at Sparton and is near the
NEMA 4 and NEMA 4X Enclosures
NEMA 4 and 4X enclosures are waterproof and weather-tight
Spartons NEMA 4 series enclosures feature cast hinges, key
latches, mounting feet, and a sturdy door for optimum accessibility
Although I did not design this enclosures original iteration, I
made improvements on it and automated the design of it using
NEMA 6P Basic Enclosure
The NEMA 6P enclosure is a submersible electrical enclosure made
of formed sheet-metal components.
It features a bolt pattern that applies the necessary
compression on a silicone gasket to keep the inside dry when
It also features an internal stiffener pattern to prevent the
enclosure from imploding under water pressure.
NEMA 6P Basic Enclosure
Cover Subassembly Box Subassembly
NEMA Enclosure Design Automation
One of my responsibilities at Sparton is automating the design
of NEMA rated enclosures. Automating creates a new enclosure from a
pre-existing one by defining its dimensions, custom properties, and
features using sets of equations from a user-programmed
The purpose of using automation instead of making a new model is
that the products feature the same style components; but they vary
in size, are for a different client, and some components may or may
not be present. When multiple enclosures with little variance in
physical design need to be made, automating saves time and money by
producing SolidWorks part, assembly, and drawing files.
The Automation Process The first step in the automation process
identify critical dimensions and custom properties. They govern
the generation of every successive enclosure thereafter.
They act as input variables on a form sent to the user, who
completes it using information from a customer quote.
Upon completion, the input variables are plugged into equations
that govern the dimensions and properties of the enclosure.
The end result is a working enclosure assembly, all pertinent
part and subassembly files, and engineering drawings for the
Speedboat Electrical Enclosure
This enclosure is made of formed aluminum and is mounted on a
It has handles, air vents, gas springs, a compressible gasket,
and racks with plates designed for mounting electrical
My Work for KettlePizza, LLC
My work for KettlePizza is mainly contracted CAD modeling
Images of my work are shown on the following pages. Projects
include creating SolidWorks parts and assemblies for concept
visualization, logo stenciling for use on promotional items, and
ready-for-manufacture quality parts and drawings.
SolidWorks parts, working assemblies, STEP files;
Engineering drawings (if necessary);
The original project with redesign concepts set as
Rendered near-photo quality product images for social media
Portable Grills for Tailgating
Cuisinart All-Foods Grill Weber Q200 Grill
KettlePizza Pro-Grate & Pizza Stone
SolidWorks Image Actual Photograph
Vice President of Sparton Technology Corportation
President, CEO, Owner of KettlePizza, LLC
mailto:[email protected]:[email protected]