Panel Bridge
Panel Bridge is a parametric generator for a 3D-printable military panel bridge — the Bailey type, built the way the real thing is: two flat truss panels tied by a deck whose tenons pass right through them. Adjust the span, pick a Warren or Pratt web, and download a 3MF with every part named, oriented, and placed on the plate. It's a single HTML file with three.js embedded — no build step, no server, and no network requests once loaded.
$ open https://panel-bridge.lccode.dev
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>Live 3D preview
Adjust span (120–200mm), truss pattern, abutments, and approach ramps with an orbiting three.js model that updates instantly.
>Live dimensional schedule
Panel pitch, diagonal angle, member sections, assembled footprint, and print plate size update as you tune the model.
>Zero-support printing
Every part is a flat plate printed on its face — measured layer by layer at a 45° threshold, the whole plate comes back at 0.0mm² of unsupported area.
>One-click 3MF export
Download nine named, pre-placed objects ready to slice, or grab individual STLs to place parts yourself.