We designed two different sizes of LEGO compatible bricks. One houses a single LED and the other can fit two LEDs. 

The LEDs are fitted inside the 3D printed brick and twist to lock them into place.

This makes them non-destructive so you can still pop them out if you ever need to.


The double LED brick uses a divider that holds them tightly in place so they won’t rattle once fitted inside.

We found these two sizes work with just about any combination of bricks so you can use the right one to illuminate your builds.


Parts List

STL files for 3D printing are oriented to print "as-is" on FDM style machines. Original design source may be downloaded using the links below.

  • Lego LED Brick
  • Lego LED Brick solo
  • Lego LED Wall

Slicing Parts


Supports are required. Slice with setting for NinjaFlex 85a material. 

The parts were sliced using CURA using the slice settings below.

  • 210c extruder
  • 0.2 Initial layer height
  • .2 layer height
  • 10% gyroid infill
  • 60mm/s print speed
  • 60c heated bed

This guide was first published on Oct 05, 2021. It was last updated on Sep 20, 2021.

This page (3D Printed Brick) was last updated on Oct 18, 2021.

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