JT

Index of work

Work

Each project is written up like a page from my notebook: what I set out to do, what didn't work, and what I changed.

  1. 01

    High-power rocket · L1 & L2 certification

    Zephyr

    My 4-inch-diameter high-power rocket, built in two iterations as the platform for my Level 1 and Level 2 certification flights.

    CAD3D printingFlight simulationFin design
    June 2026 — Now
    Zephyr on the pad, desert range in the distance
  2. 02

    Minimum-diameter rocket · Mach 1 attempt

    Needlepoint

    A minimum-diameter high-power rocket designed to reach Mach 1 on an H-class motor, carrying onboard flight avionics.

    Rocket simulationFiberglass & epoxy3D printingRecovery testing
    June 2026 — Now
    Needlepoint laid out with its recovery system
  3. 03

    Rocket avionics

    Custom ESP32 Flight Computer

    A custom avionics board that reads pressure, temperature, and acceleration, detects flight events like apogee, and fires the parachute deployment circuits.

    KiCadESP32I²CPCB designSMD soldering
    June 2025 — Jan 2026
    Assembled ESP32 flight computer on the cutting mat
  4. 04

    University rocketry club · SEB

    Space Enterprise Berkeley

    I'm on Space Enterprise Berkeley's carbon fiber composites team and help with liquid rocket engine assembly and testing.

    CompositesCADMold makingCryogenic hardwareLeak testing
    Fall 2026 — Now
    SEB's vertical test stand
  5. 05

    Fabrication process

    PCB Photolithography at Home

    I turned an MSLA resin 3D printer into a UV exposure unit so I could make my own circuit boards without sending them out to a manufacturer.

    MSLA resin printerPhotoresistFeCl₃ etchingDremel
    June 2025 — Now
    Second etched board, labeled V2
  6. 06

    Experimental research · structural dynamics

    How 3D-Printed Infill Patterns Affect Vibration

    I designed a vibration test rig and Python analysis pipeline to measure how four PLA infill patterns change a part's natural frequency, damping, and vibration transmission, then co-authored a 20-page paper on the results.

    Arduino UnoADXL345 over I²CCNC spindlePythonNumPy · SciPy · pandasFFT
    June — Aug 2025
    The cantilever test rig mounted to a CNC spindle
  7. 07

    Machine build · GRBL motion control

    Custom CNC Machine

    A CNC machine I designed and built from repurposed 3D-printer parts, with the motor-control side wired and configured by me: external stepper drivers on an Arduino CNC shield running GRBL. It cut acrylic for the projects that came after it.

    GRBLArduino CNC shieldStepper driversCAD3D printingAcrylic fabrication
    Aug — Dec 2025
    The machine in CAD: sheet-metal frame, linear rails, printed brackets, spindle, and the electronics enclosure
  8. 08

    First rocket · high school team

    Rocket Project v1

    Our first rocket: almost entirely 3D printed, with avionics I designed from scratch. The goal was a stable flight to at least 400 feet on a high-school budget.

    3D printingCADArduino NanoKiCadOpenRocketComposites
    High school
    The finished avionics tray with carbon rods