Brick System Expansion Card

The Brick System Expansion Card is a 3D-printed expansion card that adds Lego-compatible brick studs and tubes to any Framework laptop¹. Designed by bonkrat and published in October 2024, it lets you attach Lego bricks to the side or bottom of the laptop¹².

Design

The card provides standard brick studs (1.8 mm height, 4.8 mm diameter) and tubes to the outward-facing side, and female tubes on the bottom for attaching to other brick-compatible pieces¹². It fits into any standard expansion card slot.

Two variants are available: a standalone print that occupies a full slot, and a shell mod that replaces the outer shell of an existing USB-C expansion card (keeping the USB-C port functional)¹².

Specifications

Specification	Details
Type	3D-printed passive adapter12
Compatibility	Any Framework laptop (any expansion card slot)1
Bricks	Standard Lego-compatible studs (4.8 mm) and tubes12
Variants	Standalone card, USB-C shell mod12
Printing	No supports required2
Source	Printables2

Community

The project received an enthusiastic response, with community members proposing Lego laptop stands, Technic motor drives, and a collaboration with the SNACK Drawer project to add Lego studs to storage cards¹.

Related Projects

Project	Description
SNACK Drawer	3D-printed storage drawer expansion cards

Footnotes

1. Lego Brick Expansion Card — Framework Community (bonkrat, October 2024) ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹

2. Brick System Expansion Card — Printables ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸