Engineering Portfolio .pdf

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Title: Microsoft PowerPoint - Engineering Portfolio
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Ryan Mackintosh Engineering Portfolio

NASA Ames Research Center
Assignments

NASA Ames Project Overview


My role was to assist with
the development of
machined parts and
control systems for a
new heat shield testing
facility, which made use
of high power UV lasers
to simulate atmosphere
re-entry.

Overview of the test facility

Target Burn Plate


Task: To design a target mounting fixture
with a particle vacuum system used to
observe the shape of an IR laser blast.



Process: I chose a basic structure and
mounting bracket layout. I limited my
design to mostly of-the-self parts to limit
machining costs. The integrated vacuum
system shown at the top of the fixture
would be connected to a flexible press
fit hose.



Challenge: This was the first time I
designed a part with a vacuum seal as
one of my design requirements.

Particle Vacuum system


Task: To design a mounting bracket for a
preselected vacuum device.



Process: I created a detailed model of
the chosen vacuum element, in order to
accurately assess the best mounting
interface. I also included rubber
bumpers on the base of the platform, to
limit the vibration transmitted from the
device to the ground.



Challenge: This project gave me the
opportunity to gain experience
interfacing with preexisting product.

Other NASA Work


Designed various other test facility
fixtures (including mirror mount shown
right).



Assisted with the development of PLC
test plans based on Ladder logic
diagrams.

Mirror Mount Bracket

Logic Diagram

Vintage Electric Bikes Projects

E-Tracker

Cruz

Rear Rack Design


Task: Design and prototype a rack to be attached to
the bike, without the need to modify the existing
geometry.



Process: I drafted several aesthetic designs for concept
review. Once a design was chosen I determined the
required measurements for the part, and I made a
CAD model of it. A 3D print of some of the parts was
made to ensure proper sizing and appearance.



Challenge: This was the first time I had been tasked
with determining the optimal material choice. I based
my choice on cost, weight, durability, and
manufacturability. Laser cut steel was selected due to
it’s low material cost, high strength, and low
manufacturing cost.

Toolbox Design


Task: Design a toolbox that can hold a steel lock, and
be mounted in a small opening in the frame.



Process: For this design, form played a key role due to
the limitations imposed by the tight geometry. I made
several measurement to determine the maximum size of
the box. The shape was based around those
parameters. Pressed sheet metal was chosen as the
build material due to its ability be formed into irregular
shapes and its low cost.



Challenge: Having to design a part around a specific
geometric limitation was a new challenge that I had not
yet experience. I found it interesting to focus on not only
the functionality of my design but also its compatibility
with the work of others.


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