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Free Universal Construction Kit: 3D-printable adapters to connect Lego, Duplo, K’Nex, Stickle Bricks and other systems

Rob Beschizza
Apr 28, 2026
∙ Paid

The Free Universal Construction Kit

The Free Universal Construction Kit is a 3D-printable set of adapters that allow you to connect 10 popular construction toy systems, including Lego, Duplo, Fischertechnik, Gears! Gears! Gears!, K’Nex, Krinkles (AKA Bristle Blocks/Stickle Bricks), Lincoln Logs, Tinkertoys, Zome, and Zoob.

F.A.T. Lab and Sy-Lab are please…

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