Haddy Printed a Military Drone Boat With Robot Arms — but Won't Say Who It's For

Key takeaways

Haddy printed a military drone boat. The St. Petersburg, Florida manufacturer said on Saturday 8 August it produced a vessel called the TF-179 Drone Boat using large-format robotic additive manufacturing (LFAM).
Customer and mission are undisclosed. Haddy released photos and a statement but hasn’t named who commissioned the TF-179 or what it’s meant to do.
The plant is unusually large. Eight CEAD robotic LFAM cells in a ~30,000 sq ft building — seven rail-mounted production units with print envelopes around 2 × 2 × 14 metres.
It isn’t Haddy’s first hull. With HavocAI it printed a carbon-fibre-reinforced low-profile USV hull that went from design to sea trial in nine days.
The timing isn’t accidental. Printed hulls are arriving alongside Red Cat’s Blue Ops deal, a US Navy letter of intent covering up to 100 large-format metal printers, and FY2026 NDAA rules favouring domestic AM hardware.

What Haddy actually announced

Over the weekend, Haddy — a digital manufacturing company based in downtown St. Petersburg, Florida — posted photographs of a finished vessel it calls the TF-179 Drone Boat, along with a short statement describing how it was made. The hull was produced using large-format robotic additive manufacturing: industrial robot arms laying down molten polymer bead by bead until a boat exists, rather than cutting, moulding or laminating one into shape.

That is the whole of the confirmed news, and it’s worth being precise. As Defence Blog and VoxelMatters both noted, Haddy didn’t say who commissioned the TF-179, what mission it’s for, how long it is, or what it costs. In a sector where “drone boat” covers everything from a harbour survey platform to a one-way attack craft, that matters. The manufacturing story around it, though, is well documented.

Eight robots and a 14-metre print bed

Haddy works out of a roughly 30,000-square-foot building a few blocks from downtown St. Petersburg, equipped with eight LFAM systems from Dutch robotics firm CEAD. According to a plant tour published by CompositesWorld, one cell is reserved for R&D and the other seven are rail-mounted production units that both print and machine parts, running mostly on fibre-reinforced thermoplastic pellets and recycled feedstock. The print envelopes measure roughly 2 × 2 × 14 metres — big enough that a boat hull is a normal job rather than a stunt.

Haddy took delivery of its first robots in November 2022 and opened the current facility in April 2025, describing it as the world’s largest 3D printing factory by total throughput and machine count. It was founded in 2022 by Jay Rogers, a former Marine who previously ran Local Motors — the venture best remembered here for printing a car in public and then running out of runway. Same bet on robotic fabrication, different market. And the market moved: a business that started with furniture and architectural elements has pivoted hard toward defence this past year.

Nine days from design to sea trial

The clearest evidence this isn’t marketing is the HavocAI project. Working with the Rhode Island autonomous systems company, Haddy printed the carbon-fibre-reinforced hull of a low-profile unmanned surface vessel — a semi-submersible design that sits close to the waterline to cut its radar and visual signature. CompositesWorld reported the hull went from design to a functional, testable vessel in nine days, with systems integration finished in under a week after delivery.

Conventional boatbuilding doesn’t do this. Tooling, hand layup and cure cycles measure in months, and any design change means new moulds. A printed hull is a file — change the file, print the next one, sea-trial it the following week.

Haddy has also embedded its systems inside Blue Ops, the maritime arm of publicly traded Red Cat Holdings, at its Valdosta, Georgia plant. Announced in April, that arrangement targets a doubling of Blue Ops’ output across 5-metre and 7-metre USV platforms. Blue Ops president Barry Hinckley framed it as a materials-era shift — the moment fibreglass displaced wood — and said the point was the ability to “iterate at the speed of modern conflict.”

Why printed hulls suddenly have a customer

Three years ago a printed boat was a trade-show curiosity. The demand signal changed with the Black Sea, where cheap remotely piloted surface drones repeatedly damaged and destroyed far more expensive Russian warships. Western planners drew the obvious lesson: for some missions a hundred replaceable boats beat one exquisite one, and the constraint is how fast you can build and revise them.

Procurement is moving to match. The US Navy issued a letter of intent to Australian firm AML3D covering up to 100 large-format metal 3D printers across the Maritime Industrial Base, targeting 1,600 additively manufactured components a year by 2030. Admiral James Kilby, who served as the Navy’s acting chief of naval operations, put the case in readiness terms: a part printed rather than queued for 40 weeks is capability back in the fleet. And the FY2026 National Defense Authorization Act restricts foreign-sourced 3D printing systems on DoD programmes — quietly turning “we print domestically” into a moat.

Set against that, a Florida furniture printer quietly turning out drone boats looks less like a novelty and more like the supply chain policy is actively trying to build.

What we still don’t know

Plenty. Whether the TF-179 is a prototype or a production article, whether it has been in the water, its dimensions, endurance and payload, and whether “TF” is a customer designation or an internal project name. Haddy’s statement stayed at the level of manufacturing philosophy, and no government source has confirmed a programme of record. The capability is documented; the vessel’s operational story isn’t.

FAQ

Is the whole drone boat 3D printed?

The structure is. In LFAM maritime projects like Haddy’s, the hull and major structural elements are printed, then propulsion, autonomy, sensors and electronics are integrated conventionally afterwards. Haddy has not published a parts breakdown for the TF-179 specifically.

What material is used for a printed boat hull?

Fibre-reinforced thermoplastic pellets — typically carbon-fibre or glass-fibre filled polymers, sometimes with recycled content. Haddy’s HavocAI hull used carbon-fibre reinforcement. Pellets are far cheaper per kilogram than filament, which is what makes metre-scale parts economically sane.

How is this different from desktop FDM?

Same principle, different scale. LFAM uses a pellet extruder on a robot arm or gantry, deposits beads several millimetres wide at tens of kilograms per hour, and usually finishes with CNC machining on the same cell to hit tolerances. A desktop machine measures output in grams per hour.

Sources: Defence Blog, VoxelMatters, CompositesWorld, 3D Printing Industry.

Haddy Printed a Military Drone Boat With Robot Arms — but Won’t Say Who It’s For