Is this 3D model free to download?

Yes, Toroidal Propeller [4 Blades] is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MakerWorld. Use the "Download from MakerWorld" 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 spencerwondo, published on MakerWorld. 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.

Toroidal Propeller [4 Blades] 3D printable model by spencerwondo

Toroidal Propeller [4 Blades]

Source: MakerWorld by spencerwondo

The Toroidal Propeller [4 Blades] is a free printable 3D model from MakerWorld by spencerwondo. This is a toroidal propeller, which is quiter and more efficient than a traditional propeller. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MakerWorld

710 saves Source: MakerWorld Updated 2026-09-27 Print time: 1h 2m Filament: 28 g License: CC-BY-NC-SA · non-commercial ★ 4.9 (21) 299 makes Category: Vehicles & RC

Tags: toroidal, propeller, boat, submarine

About this model

This is a toroidal propeller, which is quiter and more efficient than a traditional propeller. This model was created for an experimental submarine project but it may be used for other purposes. It is designed to fit a specific propeller shaft. The Diameter of the Propeller is 120mm and has 4 “Fins”

Frequently asked questions

Is this 3D model free to download?: Yes. Toroidal Propeller [4 Blades] is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MakerWorld, not by Thinger. We link you directly to the original listing by spencerwondo.
Who made this model?: Designed by spencerwondo, published on MakerWorld. 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.