Open Marble Run 3D printable model by Robo
Open Marble Run photo 1 Open Marble Run photo 2 Open Marble Run photo 3 Open Marble Run photo 4 Open Marble Run photo 5 Open Marble Run photo 6

Open Marble Run

Source: Thingiverse by Robo

The Open Marble Run is a free printable 3D model from Thingiverse by Robo. I was looking for a 3D Printable modular Marble Run set, but I coudn't find one that actually mateched my needs. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-10-06 License: CC-BY · commercial OK Category: Other

Tags: lego marble, marble machine, marble race, marble run, marble track, marblerun

About this model

I was looking for a 3D Printable modular Marble Run set, but I coudn't find one that actually mateched my needs. I wanted it to be able to run unsupervised, so all the systems that use horizontal tracks wouldn't work (e.g. Marble Rush), also Gravitrax has that problem. So I just want a marble run set that can be sloped for every piece of track. So I created Open Marble Run. You can design your own tracks, as long as you obide by two rules: 1. On the interface between tracks, have the semi-circular track surface with a diameter of 25mm. 2. It should have its center 20mm above receptacles for common plastic construction blocks. Within the track you can do whatever you want. I hope to upload some more designs and I encourage you to design your own.

Frequently asked questions

Is this 3D model free to download?
Yes. Open Marble Run is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Robo.
Who made this model?
Designed by Robo, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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