Prometheus

Spring 2025
Gilbert Chang, Kurt Hidalgo, et al.
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Prometheus-2 Cross Section

Prometheus-1 and Prometheus-2 were P and N-class solid rocket motors respectively, designed to be cast at Zucrow Laboratories of Purdue University. Propellant grain geometries were developed inside of OpenMotor, custom components and assembly were modeled in Onshape, stress analysis was performed in ANSYS Mechanical, and nozzle analysis was done in ANSYS Fluent.

v2.0

Polaris

Spring 2025
Gilbert Chang, Jaden Hernandez, Darin Tsai, et al.
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Polaris-1 Polaris-1

Polaris, a series of rockets utilizing COTS SRMs from Loki Research, is currently being designed utilizing Onshape, OpenRocket, and RocketPy. FEA and CFD were conducted utilizing the Ansys suite. Intending to be manufactured at Bechtel Innovation and Design Center at Purdue University. Launch expected soon.

v1.0

FR3 Fin-Ray End Effectors

Spring 2025
Gilbert Chang, Zachary Kingston
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FR3 Fin-ray End Effectors

Utilizing Onshape, designed a pair of Franka Research 3 end effectors that utilize the fin-ray principle for compliance and reliability for grasping and manipulation. Used a Bambu Lab A1 mini 3D printer to fabricate the pair of end effectors.

v2.0

Baja SAE Aerodynamics & Composites

Fall 2023 - Fall 2024
Sophia Knap, Shreejith Ravisankar, Kim Asbery, Gilbert Chang
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Nosecone

Co-authored a literature review on aerodynamic devices in automotive racing contexts, converting knowledge into a model of undertray-diffuser using Solidworks. Later modeled a nosecone for Purdue Baja SAE's 2025 car (for VARTM), as well as dogbones and three-part forged carbon molds for materials testing using Solidworks.

ME 498: Forged CF Freehubs and Topology Optimization

Spring 2024
Gilbert Chang, Jitesh Panchal, et al.
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Bike CFD

Using Autodesk Fusion 360's modeling features, designed a three part mold for forging a carbon fiber racing bicycle freehub. Later utilized the software's topology optimization features to optimize the frame of a racing bicycle, smoothing features and passing the resulting models into Ansys Fluent for CFD analysis. 3D printed virtual foil geometries for wind tunnel testing.

v1.0

ME 274: Final Project

Summer 2024
Gilbert Chang
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Hand

Using Solidworks, designed a rudimentary 3D printable robotic hand with completely passive joints. Utilizing kinematics equations and other concepts learned in ME 274, which was a classic dynamics class, wrote and presented an analysis using LaTeX on the torque, current, and power requirements for a pinching motion of the robotic hand.

v1.0

ME 263: Final Project

Fall 2024
Gilbert Chang, Jordan Brookenthal, Nick Coffelt, Dante Bush
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Bowl

Designed a rice washing device in SolidWorks/Onshape, with hand-calculated tolerance stack-ups and static analysis. Prototyped using Bambu Lab A1 Mini. Features perforated inner bowl, detachable fins, and ergonomic clamping handle.

v1.0

ECE 20007: Final Project - Audio Equalizer

Spring 2024
Gilbert Chang, Arjo Goswami
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Equalizer

Breadboarded an audio equalizer accepting input from a basic headphone jack wire. Used low-pass, high-pass, and band-pass filters to split the signal into three components, and potentiometers to control the strength of each element in the final signal. Operational amplifiers were used in each stage to refine the strength of the signal further. Simulated circuit performance in LTSpice.

v1.0

VIP 27920: PCB Chiplets

Summer 2024
Gilbert Chang, Brady Philhower, Duc Tri Than
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Chiplets

Explored chiplet architecture for improved modularity, yield, and performance. Designed a tileable square chiplet with mirrored pin layouts for efficient routing. Implemented a UART-based system for streamlined data handling and developed optimized PCB layouts for signal integrity.

v1.0
© 2025 Gilbert Chang