Printed bridges under weight
A vertical engineering challenge compares colorful 3D-printed bridges through assembly and weight tests. Model labels, load captions, and visible failures turn a workshop experiment into a clear competitive story.
We asked 5 top AI models to design, engineer and 3D print a bridge to with the goal of holding the most possible weight.
Each bridge had specific parameters. It had to span 2 feet, use a maximum 500 grams of filament, and it had to be under 18 hours of printing time. We specified what type of weight and where we would place it on the bridge.
Recreation challengeMake your own version and share the prompt.
How it was made
Claude Opus 5.5 · Kimi K3 · Muse Spark 1.3 · GPT 6 Astra · Grok 4.7
Source and credit
X · Sep 27, 2026 · 8.4k likes · 474k views · 264 comments
Made with AI, according to the source
Published instructions: https://x.com/rpnickson/status/2104234974350111108, https://x.com/rpnickson/status/2104234974350111108
Look notesby Reference
Stylized 3D workshop challenge featuring a host assembling and testing colorful 3D-printed bridge structures.
- Color
- Dark navy and charcoal clothing, warm wood and amber lighting, with bright blue, red, orange, and green bridge pieces.
- Type
- Clean white sans-serif titles, captions, and labels; some bold orange display text.
- Framing
- People and bridge models are the focus, set against a workshop with large windows, shelving, and a worktable. On-screen labels and subtitles accompany several scenes.
- Structure
- The scenes depict bridge parts being designed and laid out, a bridge being tested with weights, and a visibly damaged design; comparison labels and challenge captions appear in some frames.
