Exploding a boat drive underwater: animating the parts nobody can reach
We built an exploded-view animation of a fictional electric pod drive, filmed from below the waterline. Here is why that kind of shot is easier to make in 3D than anywhere else.
Some of the most interesting machines in the world are the hardest to film. A boat's drive unit spends its working life under the hull, under the waterline, often in murky water. You cannot put a camera inside it, and you certainly cannot take it apart while it is running. So we built one in 3D and did exactly that.
This is an in-house piece: an exploded view of a fictional electric pod drive, the kind of propulsion unit that hangs below the hull and pushes the boat with a propeller. It is not a real product, which gave us the freedom to design every part, then pull the whole assembly apart piece by piece.
Getting the terms right
A quick note on vocabulary, because clients in this field care about it. What spins at the back is a propeller, not a turbine; a turbine takes energy out of moving fluid, a propeller puts it in. The whole unit is a pod drive (at ship scale you would call it an azimuth thruster). Behind the propeller and its hub cap sit the propeller shaft, the electric motor with its stator and rotor, the gear housing with the skeg fin underneath, and the water intake at the front. An exploded view lays all of that out along the axes it was assembled on, so a viewer understands the build in seconds.
Angles a real camera cannot get
The point of doing this in 3D is not just that we can take the product apart. It is that the camera can go anywhere. We can sit on the seabed looking up, drift along the hull, or hold a shot just below the surface with the light breaking through. We can slow the propeller down to a crawl or freeze it mid-turn. On a real boat, every one of those shots would need a dive team, a dry dock or a very patient engineer, and most of them simply are not possible.
That applies far beyond boats. Turbines inside a nacelle, pumps in a plant room, a mechanism inside a sealed housing, something that only exists on a drawing board: if you cannot film it, we can still show it.
Bring us the CAD, we will bring it to life
This piece was designed from scratch, but most of the time the geometry already exists. If you have the technical CAD or 3D files of your product, we can convert and clean them into render-ready models, keep every part dimensionally honest, and animate them. The engineering is already done; we make it readable. That is how we approach 3D product animation for technical products, and why we are comfortable working in the maritime and offshore world.
Faster revisions with local AI, or none at all
Where this gets different from most studios is what happens after the first version. We can use local AI models, running on our own machines rather than a cloud service, to speed up the changes that usually eat a schedule: a different lighting mood, a new material or colour on the housing, a tweak to the timing of the animation. Your files stay in house, and a round of revisions takes less time. Very few studios offer this today.
And if your company would rather have no AI involved at all, that is fine too. We can deliver the whole thing with a traditional pipeline, modelled, lit, animated and rendered by hand. The choice is yours, and we will tell you up front which parts of the job used what.
If you have a product that is hard to reach, hard to film, or not built yet, send us the files and we will show you what it looks like from the inside. The full piece is in our work as Pod Drive, Exploded.
Quick answers
What is an exploded-view animation?
An animation that pulls a product apart along its assembly axes so every part is visible in its place: propeller, shaft, motor, housing. It shows how something is built and how it fits together, which a photo of the finished product cannot.
Do you need CAD files to make one?
It helps a lot. With the technical CAD or existing 3D files we convert and clean the real geometry, so every part is dimensionally correct. Without them we can model from drawings, photos or a physical sample, it just takes longer.
Can you make the animation without any AI in the pipeline?
Yes. Local AI models are an option we offer to speed up revisions, not a requirement. If a client asks for a fully traditional pipeline, the whole job is modelled, lit, animated and rendered by hand.
Footage: our own in-house animation. More about the studio.
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