Systems · Fractional Mechanical Design

A design team for machines that cannot fail.

We specialize in systems that operate where failure is expensive, visible, or irreversible. High forces. High temperatures. Tight constraints. No room for guesswork.

You bring the vision. We bring the balance to make it real.

Plate I · Studio hardware photograph
§01Who we work with

We work alongside people building complex machines.

01 · Aerospace

Aerospace startups

Propulsion, thrusters, space-rated enclosures.

02 · Energy

Energy pioneers

Fusion optics, high-temperature hardware.

03 · Motorsport

Motorsport innovators

Engines, valvetrains, test rigs.

04 · Research

Research teams

Diagnostics, spectrometers, custom rigs.

§02What we design

Three domains. One discipline of attention.

A.01 · Powertrain
Transmission case-half assembly from powertrain design work
Powertrain schematic

Engine & Powertrain Systems

From pistons and rocker arms to complete valvetrain systems and the spin rigs built to test them. Modeling lift profiles, commissioning dynos, calibrating engine-control systems.

A.02 · Propulsion
Delphin engine mounted on the test stand
Propulsion schematic

Rocket Engines & Space-Rated Systems

Propulsion systems and hardware for environments where failure isn’t recoverable. Rocket engines, thruster assemblies, space-rated enclosures, propulsion modules.

A.03 · Fusion
Fisheye view inside the Alcator C-Mod tokamak from an H-port
Fusion schematic

Fusion & Clean Energy

Hardware for environments defined by heat, vacuum, and radiation. Silicon-carbide mirrors and spectrometer enclosures that hold up inside high-energy systems.

§03 · Why us

Most projects don’t fail for lack of intelligence or effort. They fail because too many things are treated as equally important.

Our work begins by helping teams identify what matters most, and what can safely recede into the background. That clarity is what allows complex systems to move forward without unnecessary risk or noise.

Read our method →
§04Companies we’ve designed with

A record of the rooms we’ve worked in.

Porsche Motorsport
Pinnacle Engines
Astra
Commonwealth Fusion Systems
Muon Space
§05Built work · Featured

The proof of the pudding is in the eating.

A selection of work shaped by real constraints. Different systems, different environments — the same intent.

Next step · Direct exchange

Bring us the part of the machine that worries you most.

Start a conversation