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Marble Run Blocks - Starter pack

3D model description

Designed to be easyly printed without support, safe for kids with beveled corners and scaled for 16mm standard marbles (you can scale up or scale down your prints, if you want).

These modular blocks are based on a square shape so each block perfectly feats with all the others, no matter the direction you put it.
So you can craft an infinite variety of circuits with these blocks and the extension pack :

Try the free sample available here :

3D printing settings

Layer height: Standard (0.2mm or less)
Support: No

  • 3D model format: STL



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3d designer using Blender for more than 8 years / Concepteur 3D utilisant Blender depuis plus de 8 ans

I have two kids who inspire me everyday and always motivated to try new printed toys. / J'ai deux enfants qui m'inspirent tous les jours et motivés pour essayer de nouveaux jouets imprimés :-)

I always print and optimize my models before publishing / J'imprime et j'optimise toujours mes modèles avant publication.



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Hello Bastian and thank you for your kind words. All the blocks measure exactly 40 mm by 40 mm and the pins are only used to guide the upper blocks, not to fix like Lego pieces, for example. I do not know what to say about your problem, it may be your installation because I received no other complaints for this collection.

Hello, Wabby,

first of all many thanks for the realization of this great idea.
Yesterday I printed the first parts and unfortunately the single parts don't hold together at all. The pins and the holes have a tolerance of approx. 1.2 mm. The outer dimension of a cube is 39.9 x 40 mm. The accuracy of my printer should fit. Is it wanted that the stones are so "loosely" put together?