Gabriel Duarte Rengifo

Purdue University · Aerospace Engineering

Aerospace engineering
& design.

Born in Colombia and raised in Florida, I’m an aerospace engineering student, builder, and private pilot. I enjoy bringing ideas into the physical world, from rocket controls and robotic hands to tools that help aircraft take shape.

Gabriel Duarte Rengifo
B.S. Aeronautical & Astronautical EngineeringPurdue University · 2029 · U.S. CitizenPrivate PilotWorking toward an instrument rating

The portfolio

Things I’ve worked on.

A closer look at the ideas, decisions, and hands-on work behind each project.

Manufacturing

Gulfstream · Production tooling

Seven custom tooling projects, from CATIA concepts through internal customer review and delivery.

My role
Additive Manufacturing Lab Test Intern
Timeline
May 2026 · July 2026

During my internship in Gulfstream’s Additive Manufacturing Lab, I designed seven custom tooling projects in CATIA. I owned each from concept through internal customer review to delivery, applying design-for-manufacturing and design-for-assembly principles. Two tools were adopted into production on delivery; one cleared a two-month work backlog and helped pull a shipment roughly one month ahead of schedule.

CATIA V5DFM/DFASLAFDMSLSDMLS
Additive manufacturing
Gabriel and a team of interns in front of the Gulfstream G700 mockup on his last day
CATIA / Concept to delivery
Picture on my last day in front of the G700 mockup with a team of interns. View full size
Custom tooling projects
7
Adopted into production on delivery
2
Shipment pulled ahead by one tool
~1 month

A key design decision

Design around how the tool will be used.

The workflow included internal customer review between concept and delivery. DFM/DFA principles and direct feedback connected each CATIA design to its manufacturing and assembly context.

Ownership from concept through delivery

The internship involved seven custom tooling projects for internal production. I designed each in CATIA and carried the work through internal customer review to delivery.

Design-for-manufacturing and design-for-assembly principles guided this work. Customer feedback was part of the design process, connecting the model to the people and workflows that would use the finished tool.

Hands-on additive manufacturing

I operated SLA, FDM, SLS, and DMLS additive manufacturing machines to produce shop aids and training tools for internal production. The equipment included Formlabs, Bambu, Markforged, Stratasys, and EOS machines.

The role also involved preventive maintenance on additive manufacturing equipment. Alongside the tooling projects, I redesigned the lab floor plan to open dedicated space for composite layup work.

  • CATIA tooling design with DFM/DFA principles.
  • SLA, FDM, SLS, and DMLS machine operation.
  • Internal customer review, iteration, and delivery.
  • Lab layout improvement and equipment preventive maintenance.

The result on the production floor

Two of the seven tooling designs were adopted into production on delivery. One cleared a two-month work backlog and pulled a shipment roughly one month ahead of schedule.

These results connect the design work to a concrete operational outcome: a tool that enabled work to move forward.

Outcome

Delivered seven custom tooling projects. Two entered production on delivery, with one clearing a two-month backlog and advancing a shipment by roughly one month.

Back to the project index

Aerospace

Tadpole · Thrust vector control

Actuator mounting design and constraint evaluation for Tadpole, a rocket developed by Purdue Space Program’s Active Controls team.

My role
Propulsion and Fluids subteam member
Timeline
Aug 2025 · Present

On Tadpole, a gimbaled engine changes the direction of thrust. My contribution is the actuator mounting scheme: choosing where the actuators connect so the system works within its available geometry, actuator stroke, and maximum torque constraints. I developed a MATLAB evaluation tool to compare candidate mounting arrangements using engine profile geometry extracted from NX CAD.

Siemens NXMATLABMechanical designThrust vector control
Thrust vector control
Tadpole gimbal and actuator assembly, isometric CAD view
NX + MATLAB / Mount configuration study
Isometric CAD view of Tadpole’s engine, gimbal, and actuator mounting assembly. View full size
Candidate mount sets evaluated
250+
Configurations shortlisted
3
Selected configuration
1

A key design decision

Start with the actual engine envelope.

I used profile geometry extracted from the NX model to evaluate mount locations against the available geometry and actuator constraints. The mounting decision could then be made from a comparison of candidate configurations.

The mounting problem

A thrust vector control system relies on a mechanical relationship between the engine, gimbal, and actuators. Changing a mount position changes that relationship. The mounting arrangement therefore needed to be evaluated alongside the actuator stroke and torque constraints.

My scope was the actuator mounting scheme and the tool used to compare mount point sets within the team’s existing engine geometry.

  • Use the engine profile geometry from Siemens NX.
  • Evaluate candidate mount point sets against actuator stroke constraints.
  • Check maximum torque constraints before narrowing the configuration set.

From CAD geometry to a comparison tool

I extracted the engine profile from NX CAD and brought that geometry into a MATLAB tool. The tool evaluated more than 250 candidate mount point sets against the actuator constraints.

This connected the geometry work and the configuration search in one workflow: extract the profile, evaluate the candidate set, then narrow the arrangements for final design.

Narrowing the design space

The evaluation narrowed more than 250 candidate mount point sets to three configurations. From that shortlist, one configuration was selected for final design and fabrication.

The selected configuration is now in final design and fabrication. Integration follows this stage; flight performance is not yet a reported result.

Outcome

A MATLAB evaluation of 250+ candidate mount point sets produced a three-configuration shortlist. The selected arrangement is in final design and fabrication.

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Robotics

Humanoid Robot Club

A linkage-actuated hand designed around grip strength and field repairability.

My role
Mechanical designer · Club President
Timeline
Aug 2025 · Present

I designed the finger linkages, enclosure, and actuator/servo wiring for a fully articulated robotic hand. The work spans three CAD iterations and two assembled prototypes. The current prototype has been verified lifting a 2 lb payload during ongoing testing. Alongside the technical work, I lead Purdue’s Humanoid Robot Club as President.

Mechanical designCADLinkagesActuatorsPrototyping
Robotic hand
Assembled robotic hand prototype on a workbench, showing finger linkages, palm enclosure, and wiring
Verified payload / Ongoing prototype testing
Assembled robotic-hand prototype on the workbench. The visible finger linkages connect the articulated segments above the palm enclosure. View full size
CAD iterations
3
Assembled prototypes
2
Verified lifting payload
2 lb

A key design decision

Linkages over cables.

We selected linkage actuation over a cable-driven approach to prioritize grip strength and field repairability. That choice shaped the finger mechanisms, enclosure, and physical integration of the actuators.

Designing for strength and repair

The hand needed an actuation approach suited to grip strength and hands-on repair. We chose a linkage-based mechanism to address those priorities.

This decision drove the mechanical layout. My work included the finger linkages, the enclosure that houses the assembly, and actuator/servo wiring. These parts had to be considered together as an assembled hand.

Three CAD iterations, two physical prototypes

We took the design through three CAD iterations and built two assembled prototypes. Moving between CAD and assembly gave the project a physical basis for further revision.

The design work covered the mechanisms and their integration: finger linkage geometry, the enclosure, and the actuator/servo wiring. The current prototype remains part of an ongoing test-and-iteration cycle.

A measured result, with testing still underway

The current prototype has been verified lifting a 2 lb payload. This is the demonstrated result for the assembled prototype; it is not a claim about maximum grip force or a completed endurance qualification.

I presented research at Purdue’s fall and spring undergraduate research conferences. Both presentations were listed under “Presentations with Distinction.”

Building the team around the hardware

As President, I lead a 1,500+ member organization with many subteams spanning electrical, mechanical, and software roles. My responsibilities include club strategy, finances, sponsor relationships, and technical project direction.

The role combines hands-on mechanical work with the organizational work that helps a large student engineering community build together. StarkHacks, an HRC program, is documented separately in this portfolio.

Outcome

Three CAD iterations and two assembled prototypes, with the current hand verified lifting 2 lb. Prototype testing is ongoing.

Back to the project index

Leadership

StarkHacks

The operations behind a 36-hour hardware hackathon at Purdue, the largest by attendance found in public records.

My role
Head of Ops and President
Timeline
Aug 2025 · Present

As Head of Ops and President of StarkHacks, a Humanoid Robot Club program, I ran operations for a 36-hour in-person hardware hackathon with 750 attendees. I owned venue contracting at the Purdue Armory, catering, AV/production, dedicated participant Wi-Fi infrastructure, and parking logistics.

OperationsEvent productionLeadershipInfrastructure
Hardware hackathon
StarkHacks attendees filling the Purdue Armory event space
36 hours / Purdue Armory
The StarkHacks event floor at the Purdue Armory. View full size
Attendees
750
In-person hardware hackathon
36 hours
Purdue event venue
Armory

A key design decision

Treat the event’s support systems as part of the experience.

Venue, food, production, connectivity, and arrival logistics all sat within my operational scope. Dedicated participant Wi-Fi infrastructure was one of the systems needed to support the event.

A hardware event at scale

StarkHacks brought 750 attendees together for a 36-hour in-person hardware hackathon. As Head of Ops and President, I owned the operational work that enabled the event to take place at the Purdue Armory.

The responsibility spanned contracting, production, infrastructure, and participant logistics.

The systems behind the event

I handled venue contracting at the Purdue Armory and coordinated catering, AV/production, dedicated participant Wi-Fi infrastructure, and parking logistics.

This work sat alongside my wider role leading the Humanoid Robot Club, including club strategy, sponsor relationships, and technical project direction.

  • Purdue Armory venue contracting.
  • Catering and attendee support.
  • AV and event production.
  • Dedicated participant Wi-Fi infrastructure.
  • Parking logistics.

Outcome

Delivered operations for a 36-hour hardware hackathon attended by 750 people.

Back to the project index

Aerospace

High-power rocketry

Kit building and OpenRocket simulation toward Level 1 and Level 2 high-power rocketry certification.

My role
High Power Rocketry subteam member
Timeline
Aug 2025 · Present

As part of Purdue Space Program’s High Power Rocketry subteam, I’m building Level 1 and Level 2 high-power rockets through kit building, OpenRocket simulation, and team mentorship. The work is toward NAR/Tripoli certification.

OpenRocketRocket assemblySimulationHigh-power rocketry
High-power rocketry
Illustrative photo of a high-power rocket launching in the desert
OpenRocket / Kit build / Team mentorship
Illustrative high-power rocket launch, photographed by Steve Jurvetson. Steve Jurvetson · CC BY 2.0. View full size
Certification goals
L1 / L2
Simulation workflow
OpenRocket
Team mentorship
PSP

A key design decision

Connect simulation with hands-on construction.

The project brings together an OpenRocket simulation workflow, physical kit building, and mentorship from the high-power rocketry team.

Building a practical foundation

The certification pathway combines kit building with OpenRocket simulation and team mentorship. I’m using this work to develop hands-on experience alongside my thrust vector control design work on Tadpole.

Level 1 and Level 2 are current certification goals. They are not completed certifications, and this portfolio does not yet report a certification flight result.

Outcome

Rocket builds and simulation work are in progress toward NAR/Tripoli certification.

Back to the project index

Product & software

PlayAR

First-person XR football training on Meta Quest Pro, shaped with feedback from real coaches.

My role
Product Designer
Timeline
Oct 2023 · June 2026

I co-founded PlayAR, an XR football training platform that lets players run first-person reps against virtual opponents on Meta Quest Pro. I owned product direction and worked alongside the development team on animation and movement UI, translating coach feedback into build requirements.

Product designUnityBlenderXRMeta Quest Pro
Extended reality / Football
PlayAR virtual football players positioned in a practice environment
Meta Quest Pro / First-person practice
PlayAR development capture showing virtual players in the training environment. View full size
Prototype platform
Quest Pro
Diamond Challenge team · 2024
Top 600
Limitless Global Summit team · 2025
Top 50

A key design decision

Let practice inform the product.

We piloted the prototype with our high school football team. Coach feedback became build requirements, keeping product direction grounded in the way players and coaches actually practice.

Football reps from the player’s perspective

PlayAR’s concept was a first-person training experience: use a headset to run reps against virtual opponents. The platform was developed for Meta Quest Pro.

My role centered on product direction. I worked alongside the development team on the animation and movement interface, connecting the experience we wanted players to have with the requirements needed to build it.

From coach feedback to build requirements

The project combined XR development with animation and movement UI work. The project workflow used Unity and Blender.

I translated coach feedback into concrete build requirements and worked with the team on the interface and motion. This connected the product work to the experience of running a play from a player’s point of view.

The pitch deck describes personalized plays, live casting, and eye-tracking data as areas of product differentiation. These express the broader product direction. The documented pilot centered on first-person reps and live play-throws against virtual players.

Taking the prototype to the field

We piloted the prototype with our high school football team, running live play-throws against virtual players. Coaches responded positively, and several continued integrating AR tools into practice afterward.

The pilot provided qualitative feedback about the experience. Coach feedback informed further product requirements.

Developing the venture

PlayAR advanced to the Diamond Challenge semifinal round as a top-600 team in 2024 and to the Limitless Global Summit as a top-50 team in 2025.

My co-founder work spanned October 2023 through June 2026, bringing together product direction, development collaboration, and real-world prototype feedback.

The proposed business model

The pitch deck proposed a team subscription priced at $800 per month, excluding the headset, with a $1,000 contractual fee. It focused on football programs at the high-school, college, and professional levels.

These figures describe the venture’s pitch-stage model. They are separate from the prototype and coaching feedback documented above. The deck’s later milestones, including expanded eye-tracking analysis and additional sports, describe the roadmap.

Outcome

An XR training prototype piloted with a high school football team, positive coach feedback, and recognition in two entrepreneurship competitions.

Back to the project index

Product design

Drip

A water-filter concept exploring a sawdust housing and a layered filtration assembly.

My role
Designer & prototyper
Timeline
Oct 2022 · March 2023

Drip explored a water-filter concept that combined a sawdust-based structural body with layered filtration materials. I led product design, working on the housing in Fusion 360 and developing prototypes through 3D printing. The pitch deck connects that mechanical concept to the reuse of fabric and an accessible proposed price.

Fusion 3603D printingMaterial explorationProduct design
Materials / Product design
Drip pitch-deck diagram showing the layered filter assembly
Fusion 360 / Prototyping
Filter concept from the original Drip pitch deck. View full size
Housing design
Fusion 360
Estimated unit cost in pitch deck
$8.77
Proposed retail price in pitch deck
$19.99

A key design decision

Explore a different structural material.

The concept centered on sawdust for the filter body. This made the relationship between the housing geometry, material choice, and filtration components the central design problem.

The proposed filter assembly

The pitch deck shows a stacked filter assembly with synthetic-fiber layers, carbon charcoal, and KDF 55 media. Water enters at the top and passes through the assembly into a lower collection chamber.

The housing concept explored sawdust as a structural material. The design challenge was to bring the housing, media layers, and flow path together in a compact product.

Housing design and prototyping

I used Fusion 360 to design the housing and explored the concept through 3D-printed prototypes and assembled units. My role was product design, working alongside teammates responsible for science research, marketing, and public relations.

The deck’s assembly diagram communicates the intended arrangement of the filtration layers. It documents a design concept, not a certified drinking-water performance result.

An accessible proposed price

The pitch deck estimated a unit cost of $8.77 and proposed a retail price of $19.99. Its cost breakdown included synthetic fibers, sawdust, cleaning, charcoal, and KDF 55 media.

The concept paired material reuse with an affordability goal. Those numbers are pitch-stage estimates rather than achieved manufacturing costs or sales results.

Outcome

A designed and prototyped filter concept that brought together a sawdust-based structural body, layered filtration materials, and an affordability goal.

Back to the project index

The extended resume

Experience & background.

My work in aviation, manufacturing, robotics, and product design, alongside my aerospace engineering studies at Purdue.

Download resume

Education

Purdue University

Aug 2025Expected May 2029

B.S. Aeronautical & Astronautical Engineering | Certificate in Entrepreneurship & Innovation

GPA: 3.44 / 4.0 · Humanoid Robot Club President · Purdue Space Program

Pine Crest School

Aug 2022May 2025

High School Diploma

GPA: 3.75 / 4.0 · Honor Roll · AP Scholar · National Beta Club · National Spanish Honor Society

Engineering & work

May 2026July 2026Internship

Gulfstream Aerospace

Additive Manufacturing Lab Test Intern

Savannah, GA

Designed 7 custom tooling projects in CATIA applying DFM/DFA principles, owning each from concept through internal customer review to delivery · 2 were adopted into production on delivery, with one clearing a 2-month backlog and pulling a shipment roughly a month ahead of schedule. Operated SLA, FDM, SLS, and DMLS additive manufacturing machines (Formlabs, Bambu, Markforged, Stratasys, EOS) to produce shop aids and training tools for internal production. Performed hands-on troubleshooting and preventive maintenance on AM equipment, and redesigned the lab floorplan to open dedicated space for composite layup work.

Jump to the project
Oct 2023June 2026Co-Founder

PlayAR

Product Designer

Fort Lauderdale, FL

Co-founded PlayAR, an XR football training platform on Meta Quest Pro letting players run reps against virtual opponents in first-person; owned product direction and worked alongside the dev team on animation and movement UI, translating coach feedback into build requirements. Piloted the prototype with our high school football team, running live play-throws against virtual players · coaches responded positively, with several continuing to integrate AR tools into practice. Advanced to the Diamond Challenge semifinal round as a top-600 team (2024) and to the Limitless Global Summit as a top-50 team (2025).

Jump to the project
June 2024July 2024Internship

Presidential Aviation

Summer Intern

Fort Lauderdale, FL

Audited and reconciled two years of maintenance records for 19 clients against FAA airworthiness requirements, identifying documentation errors across a 20+ aircraft fleet to help keep planes in service and airworthy. Delivered a findings report to the maintenance department recommending consolidation of overlapping maintenance events to reduce aircraft downtime and automation of the manual record-entry steps causing the documented errors.

June 2023July 2023Internship

InQLab

Summer Intern

Bogota, Colombia

Implemented AI algorithms to enhance verified media coverage for Colombian news. Analyzed websites and implemented user interface features to optimize the browsing experience. Generated market research reports and company acquisition profiles.

Technical leadership

Aug 2025PresentClub · President

Humanoid Robot Club

President

Purdue University · West Lafayette, IN

Leading a 1,500+ member organization with many subteams spanning electrical, mechanical, and software roles, overseeing club strategy, finances, sponsor relationships, and technical project direction. As Head of Ops and President of StarkHacks, an HRC program, ran operations for a 36-hour hardware hackathon with 750 attendees · owning venue contracting at the Purdue Armory, catering, AV/production, dedicated participant Wi-Fi, and parking logistics. Designed finger linkages, enclosure, and actuator/servo wiring for a fully articulated robotic hand, working with the team to choose linkage actuation over cable-driven for grip strength and field repairability and deliver 3 CAD iterations and 2 assembled prototypes, with the current prototype verified lifting 2 lb payloads in ongoing testing. Presented hand design research at Purdue's fall and spring undergraduate research conferences, listed under "Presentations with Distinction" at both.

Jump to the project
Aug 2025PresentClub

Purdue Space Program

Active Controls Propulsion and Fluids · High Power Rocketry Subteam Member

Purdue University · West Lafayette, IN

Designed the actuator mounting scheme for a gimbaled thrust vector control system on Tadpole with Purdue Space Program Active Controls; wrote a MATLAB tool evaluating 250+ candidate mount point sets against actuator stroke and torque constraints using engine geometry extracted from NX CAD, narrowing to 3 configurations, with the selected configuration now in final design and fabrication. Building a Level 1 and Level 2 high-power rocket (kit build, OpenRocket simulation, team mentorship) toward NAR/Tripoli certification as part of PSP's high-power rocketry subteam.

Jump to the project

Earlier involvement

Aug 2021May 2025Club · President

Technology Student Association

President

Fort Lauderdale, FL

Led a chapter of 120+ students that consecutively placed in a national STEM competition. Presided over 80 Middle & High School state and national competitive events against 350k+ students.

Sep 2021Jun 2025Club

Computer Science Club

Member

Pine Crest School · Fort Lauderdale, FL

Participated in Hackathons, ACSL, and the Bebras challenge each year. Selected as 1 of 5 students to develop new applications for the school's Pepper AI robot.

Selected coursework

AAE 251

Introduction to Aerospace Design

Applied aerodynamics and orbital mechanics fundamentals through MATLAB problem sets and pitot tube analysis; collaborated in a 6-person team on the conceptual design of a full aerospace system.

MFET 163

Foundations in Geometric Modeling & Data Management

Utilized Siemens NX and a PDM system (Teamcenter) to model parametric parts, manage variants via expressions and design tables, and support an Engineering Change Process (ECOs) through a simulated industry PLM workflow.

Skills & tools

Software

Fusion 360AutoCADSolidWorksOnshapeSiemens NXCATIA V5MATLABTeamcenterOpenRocket

Technical Skills

Additive ManufacturingSLA/SLS/FDM/DMLSCNCCADMechanical DesignLaser CuttingDFM/DFA

Programming Languages

JavaScript/TypeScriptPythonJavaC

Web & Design

ReactTailwind CSSUnityBlenderAdobe Creative CloudFigmaCanva

In the sky

Private Pilot

Working toward an instrument rating

Part 61 · Airplane Single Engine Land

55flight hours in current resume
Languages

English · Spanish

Gabriel standing beside a light aircraft
A little closer to the work that first got me interested in aerospace.

A little about me

Curiosity keeps me building.

I study Aeronautical and Astronautical Engineering at Purdue, lead the Humanoid Robot Club, and work on rocket controls with Purdue Space Program Active Controls. I’m drawn to owning designs from start to finish, using analysis to learn from each iteration and improve what I build.