Is this 3D model free to download?

Yes, Sinking-floating diver toy 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 Electricman32, 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.

Sinking-floating diver toy 3D printable model by Electricman32

Sinking-floating diver toy

Source: Thingiverse by Electricman32

The Sinking-floating diver toy is a free printable 3D model from Thingiverse by Electricman32. This is not a cartesian diver. 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 2026-11-06 License: CC-BY · commercial OK Category: Toys & Games

Tags: buoyancy, physics demonstration, science toy, scuba diver

About this model

This is not a cartesian diver. This diver toy works on a similar principle as the ballast tanks inside a submarine, although the air is not compressed inside. When you suck the air out of the tube, the diver will fill up with water and sink. If you blow air into the tube, the diver fills up with air and rises back to the surface. See it in action : The pla is quite light, so it needs a little weight to make sure it sinks. Place a pebble stone of about 2cm (20mm) in "diameter" into the diver body before the head is printed. You can pause the print on the printer, but it is better to set it into the Gcode and also enable the function to reprint layer after the pause, to prevent layer separation. As a hose you can use any flexible tubing as long as it has the appropriate diameter, length, and…

Frequently asked questions

Is this 3D model free to download?: Yes. Sinking-floating diver toy 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 Electricman32.
Who made this model?: Designed by Electricman32, 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.