You, too, can build this ESP32 3D-printed solar system model, and yes, it spins
The Meridian Orrery is a DIY solar system model that utilizes an ESP32 and 3D-printed components. It features a unique calibration process that allows it to accurately display the positions of planets and includes a miniature moon orbiting Earth. This project combines technology and creativity, making it an engaging way to represent celestial bodies in a home setting.
- ▪The Meridian Orrery uses an ESP32C3 and DS3231 RTC to calculate planet positions offline after a one-time calibration.
- ▪It features a clever gear ratio that allows a tiny moon to orbit Earth accurately as the planets align nightly.
- ▪The project is designed to be easy to build, requiring only basic components like motors, magnets, and a 3D printer.
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| Original publisher | XDA Developers |
| Canonical URL | https://www.xda-developers.com/you-too-can-build-this-esp32-3d-printed-solar-system-model-and-yes-it-spins/ |
| Publication time | Wed, 29 Apr 2026 04:17:49 GMT |
| Retrieval time | 2026-04-29T05:01:00.886Z |
| Last seen | 2026-04-29T05:01:00.886Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 5lI3OK2_7feF |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at XDA Developers.
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