Free 3d-terrain print: I wanted to build 3D models of places I've visited, to see their architectural features and to print them. So I built Your Place with Claude Code. What it does: type an address and it builds the 1, 2 or 4 km around it as a model on the real terrain. Pin a house, share a link to that view, download a poster or an STL. Free, no sign-up, runs in the browser: https://yourplace3d.github.io/3d-city/ It's open source and runs on OpenStreetMap data, which volunteers map by hand, so a model is only as good as the map: big cities are detailed, some villages are sparse, and where a building has no recorded height the app estimates it and tells you how many. What I learned along the way: - Let it write tests and run them every time. Its browser tests caught bugs before I ever saw them, like a hidden "browser not supported" screen covering the app and a tab title that said "undefined". - Test against real data, not just samples. Its test city passed, but real OpenStreetMap data broke the 3D print file in four ways (buildings split at tile edges, terraced houses sharing walls, courtyards touching walls, outlines crossing themselves). It fixed them and checked 38,692 shells until every one was watertight. - Its sandbox couldn't reach the map servers, so it moved the live checks to GitHub Actions, and rendered this video there too, frame by frame from live map data. - Before going public, ask it to check your GitHub for personal data. Mine found things I'd have missed. Code (MIT): https://github.com/yourplace3d/3d-city Happy to answer questions about the workflow.   submitted by   /u/Accurate_Adam   to   r/projects [link]   [comments]