Is this 3D model free to download?

Yes, Customizable Self-Starting Siphon 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 Nother_Ngineer, 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.

Customizable Self-Starting Siphon 3D printable model by Nother_Ngineer

Customizable Self-Starting Siphon photo 1

Customizable Self-Starting Siphon photo 2

Customizable Self-Starting Siphon

Source: Thingiverse by Nother_Ngineer

The Customizable Self-Starting Siphon is a free printable 3D model from Thingiverse by Nother_Ngineer. A customizable parametric version of the self-starting siphon that you can tweak to find the optimal size/parameters. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

40 saves Source: Thingiverse Updated 2026-10-16 License: CC-BY-NC-SA · non-commercial Category: Education & Science

Tags: physics demonstration, physics experiment, siphon

About this model

A customizable parametric version of the self-starting siphon that you can tweak to find the optimal size/parameters. Attached stl file is just an example with a pentagonal tubing. Suggest printing with 100% infill for water-tightness, and with clear filament. No support required unless you bump up the facet count above 9. To use, drop it into a glass of water that's filled to the brim (the glass must be deep enough that the inside loop is submerged). I'm listing dougfeig's design as the source since it's where I got the idea and it contains some useful links for more info, but I wrote this version from scratch in OpenSCAD. (Updated 9/29/20 to add configurable bend angles and a better example)

Frequently asked questions

Is this 3D model free to download?: Yes. Customizable Self-Starting Siphon 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 Nother_Ngineer.
Who made this model?: Designed by Nother_Ngineer, 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.