Is this 3D model free to download?

Yes, Modular Marble Rollercoaster is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by majicDave, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Modular Marble Rollercoaster 3D printable model by majicDave

Modular Marble Rollercoaster

Source: Thingiverse by majicDave

The Modular Marble Rollercoaster is a free printable 3D model from Thingiverse by majicDave. These tracks are designed to work with a 25mm diameter marble. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

116 saves Source: Thingiverse Updated 2026-11-02 License: CC-BY · commercial OK Category: Toys & Games

Tags: duplo, LEGO, marble, marble run, marble track, rollercoaster, rube goldberg

About this model

These tracks are designed to work with a 25mm diameter marble. For best results, use a glass marble, but there is an stl included for a marble which you can print with supports and I used 50% fill for a bit more weight. You can print all of these models (except the marble) in PLA without needing any supports. The curved tracks may require minimal trimming and light sanding can help with speed and reliability, but the level tracks should work without any tidying up. The tracks are designed to snap together with plenty of space to allow for imperfect printing. The tracks are designed to fit on to duplo blocks, but very snugly, as I went for stability over ease of connection there. So with the short/up/down and loop tracks you'll need to push them on to duplo blocks with some force. The long …

Frequently asked questions

Is this 3D model free to download?: Yes. Modular Marble Rollercoaster 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 majicDave.
Who made this model?: Designed by majicDave, 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.