# 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. - Kind: Video - Page: https://meetreference.com/v/video-printed-bridges-under-weight-b93d41/ - Ready-to-use agent handoff: https://meetreference.com/v/video-printed-bridges-under-weight-b93d41/agent.txt - Exact prompt as plain text: https://meetreference.com/v/video-printed-bridges-under-weight-b93d41/prompt.txt - Authorship: AI-made, per the source - Made with: Not stated - Model: Claude Opus 5.5, Kimi K3, Muse Spark 1.3, GPT 6 Astra, Grok 4.7 - Built with: not stated - Style: Math & science; live-action, vertical-video, workshop, comparative, caption-led - Length and format: 1 min, 9:16 (1080x1920 source) - Playback: a muted visual reference. The original soundtrack is available only at the source. - Shared by @rpnickson in X, Sep 27, 2026: https://x.com/rpnickson/status/2104234974350111108 - Prompt fidelity: Paraphrased. The creator described the prompt in their own words rather than publishing it. ## Before you start Guidance from Reference, separate from the creator's instructions. 1. Read the reference and inspect the project, installed libraries, and available agent skills before writing code. Reuse suitable tools already present. 2. Prefer the creator-reported libraries and skills when they fit the task. Explain what useful additions help with, and install missing project dependencies or relevant skills from official sources when the environment and the user's existing permissions allow it. Respect the project's package manager and setup rules; do not ask again for routine setup already authorized. 3. Distinguish tools used by the creator from your own recommendations. A listed tool is not automatically required, and an empty tools or requirements list means the setup is unknown, not that nothing is needed. 4. Ask concise questions when missing inputs or choices materially affect the result: paid services, credentials, the user's assets, or a different production approach. Use existing answers and permissions; continue independent work while waiting. 5. If a useful library, skill, or service cannot be installed or used, explain an available alternative and its expected effect on quality, features, or effort. Get the user's choice before a material compromise; otherwise state the fallback and continue. Never silently simplify the result or claim to have used a tool you did not use. ## Recreating this video These are the creator's published instructions, unedited. ## Prompts ### 1. Creator’s description of the task ```text We asked 5 top AI models to design, engineer and 3D print a bridge to with the goal of holding the most possible weight. ``` ### 2. Creator’s summary of the design constraints ```text 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. ``` ## What it looks like Written by Reference from the video frames, not by the creator. 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. Storyboard, nine frames spread across the video: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/storyboard.webp - Frame 1 at 4.4s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f1.webp - Frame 2 at 13.2s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f2.webp - Frame 3 at 21.9s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f3.webp - Frame 4 at 30.7s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f4.webp - Frame 5 at 39.5s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f5.webp - Frame 6 at 48.3s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f6.webp - Frame 7 at 57.1s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f7.webp - Frame 8 at 65.8s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f8.webp - Frame 9 at 74.6s: https://meetreference.com/media/video-printed-bridges-under-weight-b93d41/f9.webp ## Links - Watch: https://x.com/rpnickson/status/2104234974350111108 - Original post: https://x.com/rpnickson/status/2104234974350111108 - Discovery collection: https://data.openchamber.dev/opus-5-5-videos/v/rpnickson-2104234974350111108