Free Download: uBrick LEGO® Generator

If you want to 3D print some LEGO parts, try out this free add-on Maox. It generates procedural LEGO®-compatible bricks — manifold, print-ready, no Boolean ops needed.
Hey everyone! I just released uBrick Generator, a free open-source Blender add-on that generates parametric LEGO®-compatible bricks — fully manifold and ready to slice for 3D printing, with zero Boolean operations.
Features
- Parametric brick generation: any size from 1×1 to 32×32, stackable heights
- Fully manifold mesh (0 open edges) — works in PrusaSlicer, Cura, Bambu Studio out of the box
- Correct face normals on every surface — no blue faces, no slicer artifacts
- Hollow shell with real wall thickness (LEGO-spec 1.2 mm)
- Closed top plate (solid box, 1.2 mm thick)
- Anti-stud tubes for proper brick-to-brick connection
- Internal ribs between tubes
- Tolerance parameters exposed in the F9 panel for tuning to your printer and filament
LEGO® is a trademark of the LEGO Group, which does not sponsor, authorize or endorse this project.






Uh, where’s the link? I looked through this post three times to be sure and still couldn’t find it…
Whoops, sorry! I just added it