Free download

One Line, One Machine

A free guide to Machine Skill, the open-source Claude Code skill by Airsup that turns one sentence into a 3D machine in one HTML file: real proportions, real materials and a small physics model behind every number, with cutaway, explode and a computed "break it". Install, how to write the line, what happens while it builds, how to film it for Reels and the feed, 24 one-line machines to start from, a checklist before you post, and the honest limits.

The download starts right away; the link also comes by email.

Without the newsletter box you get exactly one email with your link; the address is deleted after 7 days.

What is inside
  • What you get One HTML file: the real machine, real materials, a solver behind every number.
  • Write the line Name the real thing, say what moves and breaks, say where it goes.
  • Film it The commands for 9:16 Reels, 4:5 feed posts and stills for a carousel.
  • PROMPTS.md 24 one-line machines: engines, watches, pumps, robots, medical devices.
  • CHECKLIST.md A 10-minute check for looks, physics, modes and the film before you post.
  • Honest limits A small model, not CFD or CAD; GPU, tokens and setup for filming.

Claude Code (or another agent that reads skills) and a browser with WebGL2. For films: Node.js 18+, Playwright with Chromium and ffmpeg. A recent laptop GPU helps. Building a machine is a long agent run. The guide is in English.