Is this 3D model free to download?

Yes, Curved Rails for Gravitrax 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 Swan_Kikaku, 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.

Curved Rails for Gravitrax 3D printable model by Swan_Kikaku

Curved Rails for Gravitrax

Source: Thingiverse by Swan_Kikaku

The Curved Rails for Gravitrax is a free printable 3D model from Thingiverse by Swan_Kikaku. While many types of curved rails are available, I found that the types I wanted to use were rarely available and that many had very tight connections, making them difficult for. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

30 saves Source: Thingiverse Updated 2026-10-15 License: CC-BY-SA · commercial OK Category: Toys & Games

Tags: Gravitrax, marble run

About this model

While many types of curved rails are available, I found that the types I wanted to use were rarely available and that many had very tight connections, making them difficult for me to use. Therefore, I decided to make my own. I also made the simplest 120-degree short rail. As a bit of fun, I also made a version that can use a ball as a weight. When printed on my printer, the parts are adjusted to provide a slight resistance when inserted into the original Gravitrax tiles. Depending on the printing environment, the fit may be very tight or loose when inserted - in particular, if the rails move too easily, they will be practically unusable. It is best to connect the two parts with the original Gravitrax tiles, with the height being flat or with a 0.5cm difference. If there is a 1cm differenc…

Frequently asked questions

Is this 3D model free to download?: Yes. Curved Rails for Gravitrax 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 Swan_Kikaku.
Who made this model?: Designed by Swan_Kikaku, 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.