Touchdown Delivery LLC: (06/2017 – )

President and Founder: (06/2017 – )

I have recorded 2100+ and counting hours of dedicated work on Touchdown Delivery.
I am the only employee, but I am constantly recruiting help. Apply on my site.
My site still has the V8.0 drone design featured, but my design work on V8.1 is nearing completion with around 100 hours of dedicated CAD work remaining. The unfinished V8.1 drone is currently on my homepage - a work in progress, but still one I’m optimistic about.
While TDD is a drone technology company, the real breakthrough is in the network of commerce it creates and the methodology of profit that supports that network.
Any person or organization interested in Touchdown Delivery LLC should contact me to arrange a call or meeting, I’ll be happy to give you my time - let’s be partners!

SolidVets: (07/22/2018 – 02/01/2019)

Computer Aided Design Teacher: (07/22/2018 – 02/01/2019)

I taught a small group of adult students to create their own designs using Onshape, as well as edit or interpret other designs they are given. They started with 10 weeks of 4 classes per week, which was focused on designing a wide range of parts in the Part Studio. The next 8 weeks were focused on creating and working with Assemblies of some or many Parts in the Assembly Studio.
Computer Aided Design is a diverse & deep topic - everything from the CGI in popular movies and video game environments to bridges and water bottles exists because of modern CAD.
In our ½ year course, we went well beyond simple brackets & part mounts; students learned how to create lofts with paths, end conditions, and guides, as well as working with variables and multiple part configurations.
The most efficient way to understand the breadth of our coursework would be to check out my Thingiverse profile (About Bryan, linked at the page bottom) where you can print many of my designs.

Fabrication – My fabrication work included:

Machining aluminum, copper, brass, acrylic, polycarbonate, and ABS on a lathe and mill
Fiberglass and carbon fiber work, resin minimization and development of fabric templates, working with different weights and weaves
Surface mount soldering and PCB construction, multi conductor cable construction, soldering and brazing non-electric components like copper pipes and nuts
Assembly of plumbing and pneumatic lines with NPT, AN, and compression fittings
Aluminum and Steel pipe bending, cutting, flaring, tension and vibration relief coiling

Design – My design work included:

Fluid heat sink design, machining, testing, and refinement
Actuated valve design using pancake pneumatic cylinders, pistons, and simple electric servos
Reading, creating, and modifying P&IDs and simple linear circuit diagrams
Design and construction of a 5 gallon acetone vapor chamber for print resolution smoothing in ABS printed parts

Testing and Data Collection – My data collection & analysis work included:

Airspeed measurement: pitot tubes, hot wire anemometers, and venturis
Testing components for specific pressure and flow parameters, including valves, rocket engine injectors and regen paths, heat exchangers, and other components that provide resistance
Flow visualization using dye injection - identifying backflow or stagnation

Aerospace Engineering – Jacobs School of Engineering:

185 completed Units (58% of my Engineering classes, and all my Math and GE). 54 units remaining.
I’m unsure about when, if ever, I’ll finish my AE BS. I withdrew as a student to save money, pursue my own drone designs, and because I found the coursework to be unnecessarily devoid of contemporary aerospace topics. My dissatisfaction should not be confused with bitterness - I am still a Triton and I love UCSD. I learned a lot and made some awesome friends.

Recruitment Manager: (02/2016 – 10/2016)

I worked with other managers to itemize and develop positions, advertised to students, organized panel interviews, and developed a fair and organized scoring system.
I managed a total of 3 recruitment cycles, providing structure for and attending over 60 student interviews.
Of the 21 positions I helped fill as Recruitment Manager, all 21 Members stayed for the entire duration of the position they applied for.

Vulcan Rocket Recovery Systems Team Lead: (07/2015 – 05/2016)

Vulcan was a student designed sounding rocket by the UCSD chapter of SEDS that incorporated a 3D printed regenerative rocket engine. The engine, which used Lox and JP4, has been static fired 3 times, producing over 650 pounds of thrust.
I designed and directed fabrication of the parachute deployment system. The rocket was equipped with an 8’ drogue and 28’ main parachute that were designed to deploy using barometric altitude readings from our avionics PCB. I also made contributions to the Avionics Systems, including battery mounts and sled design.
I contributed major design elements to the entire rocket, including fin construction, fuel and lox tank design, engine ignition mechanism and sequence, and pneumatic disconnects for launch valves.
The Vulcan rocket successfully launched May 21st 2016. The video is online.

CAD: (Onshape, Solidworks, AutoCAD)

Designing for printability: brackets, mounts, and scaffolds for composite layups
Designing for shareability: clear labeling, appropriate dimensions, and sketches constrained so as to be easily understood and edited
Assemblies and linked CAD files with numerous substructures and moving parts with several degrees of freedom
Pipe and wire routing around obstacles, 3D Splines
Creating custom threaded features, helical operations, and low-efficiency propeller design and airfoils
Boolean operations, part design using irregular surfaces
Living hinges, clasps, and other kinetic print features
Designing with variables, creating configurations
Lofting and working with surfaces, enclosing spaces, creating complex intersections & projections

Spreadsheet and Data Entry: (Microsoft Office, Google Sheets, MATLAB)

Creating functional part spec sheets for systems
Creating Bills of Materials, Project Cost Totals
Graphing large data entries for two and three variables with proper inclusion of error bars and error propagation
Graphing standard deviation spread visualizations for part features or performance metrics

Technical Writing:

Creating documents that describe the complete fabrication process for a part, including engineering diagrams, machining tool changes, and critical dimensions to be checked for spec

Electronics and Sensors I’ve Worked With:

Thermocouples, thermistors: selection of sample sites and mounting, data logging
Pressure transducers: vacuum, low pressure liquid, high pressure gas
Turbine Flowmeters, Variable Area Flowmeters: calibration with water, turbine bearing replacement and internal maintenance, pick-up replacement
Ultrasonic proximity, infrared sensors
Humidity, TDS, Water detection, Level sensors with floats
Load cells: rigid mounting structure design, installation and operation for short data acquisition periods

Components I’ve Worked With:

Regulators: hand loaded, dome loaded, calculating max flow using cv
Pumps: bilge pumps, vacuum pumps, high flow water pumps (30-40 GPM), peristaltic pumps, pistonless pumps
Solenoids: experience with singular instances and manifolds of multiple solenoids, dual acting solenoids
Valves: experience selecting valve types, replacement of sealing surfaces and loading springs, application of electrically and pneumatically actuated ball and butterfly valves, valve flow characterization
Heat exchangers, Radiators: experience in low pressure usage