Digital Bricks — an open-source R3F construction editor with snapping and printable STL export

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Hi everyone,

I’ve just launched Digital Bricks, an open-source browser construction editor built with three.js and React Three Fiber. I made it to give children, parents, and makers a simple first step into 3D modeling: drag a part into the scene, let it settle onto the build plate, and bring compatible connectors together to snap.

The editor currently includes:

  • 35 procedurally generated generic parts
  • explicit connector frames with quaternion-based alignment
  • deterministic gravity placement, collision checks, and snap previews
  • multi-select, copy, 90° rotation, undo, and redo
  • local .legox project import/export
  • Manifold union into a single watertight binary STL
  • a public gallery with source-preserving remixes

Building, local saving, and STL export work in the browser without an account or installation.

Live demo: Build Printable 3D Models with Digital Bricks
Source: GitHub - raywill/lego-x: Open-source browser 3D digital bricks for playful modeling, sharing, remixing, and watertight STL export. · GitHub

I’d especially value feedback on touch controls and camera assistance while dragging, snapping around rotated or side-facing parts, and the STL workflow for real prints.