The 48Hz Mechanical Hummingbird Can Be Disassembled, and This Claude Skill Is Free

Elvar posted a video on X: a mechanical hummingbird hovers, with a wingbeat reading of 48 Hz. The next second, the wings lift up from the shoulder mounts, rotate, and reveal the structure underneath. Click again, and the whole bird comes apart, with armor panels and mechanisms floating around the skeleton. Finally, the parts return to their places and the wings keep flapping.

This is not a pre-rendered animation. It runs in the browser, is built with three.js, and is generated by a Claude skill Elvar wrote. Elvar says he released the skill and source code for free, and you can get them in the article.

A bit of background first. A Claude skill can be understood as a reusable work package prepared for Claude, containing instructions, scripts, and resources that let the model work through a fixed workflow instead of starting from scratch in chat every time. The goal of Elvar's skill is very specific: turn a single idea into an interactive 3D machine that can be disassembled, rotated, and have its readings inspected.

The hummingbird's details line up. The mechanical skeleton, armor panels, wing drive, and optical components each belong to their own layer. The optical components move forward from the head and split into labeled layers. The wings detach from the shoulder mounts, rotate, and reveal the structure underneath. Teardown mode opens up the whole bird, with panels and mechanisms suspended around the frame. After the parts return, the wings start flapping again.

In the comments, someone posted a revolver teardown. Motion data for the cylinder, trigger, and hammer is marked on the side, with readings for travel and spring force.

The easiest way for this kind of demo to fall apart is for every part to move on its own. One system for animation, another for gauges, and yet another for the timeline; in the end the state drifts, it looks lively, but it falls apart after a couple of disassembly clicks. A user pointed out the key to Elvar's skill: a single function drives the mechanism, gauges, and timeline, with one input source managing everything through to the end, so they don't get out of sync. That constraint doesn't sound cool, but it determines whether the model can be seriously disassembled.

There are problems too. Someone asked whether this kind of single solver can still hold up for machines with more than 50 moving parts. Elvar didn't give an upper limit, saying only that he improves the skill every day and that each new model brings new ideas.

Someone else tried it with Codex. Hugo used Codex to recreate a similar 3D mechanical teardown and posted a six-legged robot. His own assessment was that it fell far short of Claude, even feeling a bit plastic. The video and interface are below.

This comparison doesn't prove everything. Model capability, prompts, and the skill's constraints on the workflow all affect the result. A user mentioned that running it on a stronger model would yield a higher level of completion. But at least judging from the public videos, the mechanical structures coming out of the Claude pipeline are cleaner, and the teardown hierarchy is clearer.

Elvar put the skill and source code in the article: https://x.com/i/article/2116115649856430080

Free, open source, and modifiable. For developers, this means they can take it apart to see how it constrains state; for ordinary users, it means they can throw in an idea and see whether they get a machine that can rotate, be disassembled, and have its readings viewed.

Seeing too much of this kind of thing can make you numb. Every day there's a new 3D demo: it spins a couple of times, someone takes a screenshot, and then no one opens it again. The difference between can-be-disassembled and cannot-be-disassembled lies in those few clicks. Elvar's at least goes one step further. As for how complex it can get, we'll have to see the next model with 50 parts.