Jonathan Katz
Mechanical Engineer · Designer · Maker

Design it.
Build it.
Test it.

I’m a mechanical engineer focused on turning analytical models and CAD into working hardware—from precision mechanisms and manufacturing systems to robotics and experimental equipment.

MIT Mechanical EngineeringMy work spans mechanical design, precision machine design, CAD/CAM, CNC and manual machining, prototyping, testing, FEA, and hands-on system integration.
Selected Work

Projects built from the hardware up

Detailed case studies showing the design decisions, manufacturing process, testing, iteration, and final results behind my work.

Axial Excellence precision lathe
MIT 2.72 · Elements of Mechanical Design

Axial Excellence Precision Lathe

A six-person precision machine design project taken from analytical modeling and detailed CAD through machining, integration, alignment, and measured cutting performance.

Precision DesignCADMachiningHTMTesting
Injection-molded dragon yo-yo
MIT 2.008 · Design & Manufacturing II

It's A Feature! Yo-Yos

A production-focused project culminating in more than 50 finished yo-yos. I owned the main body from concept through CAD, CAM, mold machining, injection molding, and iteration.

DFMCAD/CAMCNCInjection Molding
Scribbly embroidery guide drawing machine
MIT 2.009 · Product Engineering Processes

Scribbly Embroidery Accessory

A compact XY gantry developed for an embroidery accessory that draws washable guide patterns directly onto fabric. I worked on the mechanical design, CAD, assembly, alignment, and testing of the gantry system.

Mechanical DesignCADGantry SystemsPrototyping
Flexure-based compliant mechanism prototype
MIT 2.145 · Design of Compliant Mechanisms

Compliant Mechanisms

Five rapid design-build-test projects exploring exact constraint, flexure kinematics, pseudo-rigid-body models, stiffness matrices, and bistable elastic energy storage.

FlexuresMATLABFEAPrototypingTesting
3D-printed MIT HAUS floor prototypes
MIT HAUS · Undergraduate Research

3D-Printed Floor Design

Lightweight floor structures developed for an additively manufactured home through rapid CAD iteration, Fusion 360 FEA, 3D printing, and physical bending tests.

Fusion 360FEAAdditive ManufacturingTesting
Three-stage high-powered rocket
Learn Ventures · Aerospace Projects Consultant

Three-Stage High-Powered Rocket

A three-stage rocket taken through mechanical redesign, composite manufacturing development, staging tests, full-scale integration, and flight to approximately 15 km altitude.

SolidWorksCompositesStagingPrototypingTesting
How I Work

Engineering beyond the screen

I enjoy projects where mechanical analysis, detailed design, manufacturing, and experimental validation all matter.

Design + analysis

CAD, tolerance decisions, stiffness and thermal modeling, FEA, mechanism design, and translating functional requirements into hardware.

Build + validate

CNC/manual machining, prototyping, assembly, instrumentation, troubleshooting, measurement, and iterating until the physical system works.

Want the full background?

See my experience, education, and technical skills in my resume—or reach out directly.