Flexible LEGO Strips

In this guide, we’ll show you how you can 3D print flexible lego strips. These strips are 3D printed with a rubber like material that allow it to cling to glass surfaces without any adhesives! The bottom of these strips are able adhere to glass using suction, so this allows you to build lego projects with lots of different bricks so you can make pretty cool scenes.

Classic Ninjaflex Filament


We used NinjaFlex 85A, which is a flexible filament that features soft rubber characteristics.


The strips have a tight tolerance so they have a pretty solid connection to LEGO bricks.


Even small 1 by 1 bricks connect nicely and are able to stay connected even when the strip is curved and flexed.

How Does It Work?

The secret to making NinjaFlex cling to glass surfaces is to use a heated glass bed! The bottom of the strips are glossy and smooth. The heated glass bed fuses the layers together which creates an a glossy surface. When the surface is pressed up against a glass surface, it creates an air tight suction that can hold a fair amount of weight.

Prerequisite Guides

We recommend walking through the following tutorial to get familiar with the components used in this project.



You'll need the following parts to build this project.


Tools & Supplies

You'll also need the following tools and supplise to complete this project.

This guide was first published on Apr 12, 2017. It was last updated on Apr 12, 2017.

This page (Overview) was last updated on Apr 09, 2017.

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