Is this 3D model free to download?

Yes, Diaphragm Air Engine 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 StantonFrames, 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.

Diaphragm Air Engine 3D printable model by StantonFrames

Diaphragm Air Engine

Source: Thingiverse by StantonFrames

The Diaphragm Air Engine is a free printable 3D model from Thingiverse by StantonFrames. Please use this product at your own risk and always wear eye and ear protection! Do not pressurise this engine without carrying out safe pressure tests. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

2,611 saves Source: Thingiverse Updated 2026-11-01 License: CC-BY · commercial OK 3 makes Category: Toys & Games

Tags: Diaphragm, Air, Engine

About this model

Please use this product at your own risk and always wear eye and ear protection! Do not pressurise this engine without carrying out safe pressure tests. 3D print qualities vary and will not guarantee that the bottle cap/cylinder head can cope with high pressures. Video for more info: Print info: Material: PLA (I prefer PLA as it's easy to get strong layer strength) Nozzle diameter - 0.4mm Print width - 0.5mm Layer height - 0.2mm Cylinder Head Print info: Top/Bottom layers - 6 Outer walls - 6 (enable single wall preimeters for the cylinder volume fins) Infill - 30% Nozzle Temperature - 220c (Recommend 5-10c hotter than usual for extra strength) Bed temperature - 50c Other Parts Print info: (Can use your usual print settings, these are mine) Top/Bottom layers - 3 Outer walls - 2 Infill - 15%…

Frequently asked questions

Is this 3D model free to download?: Yes. Diaphragm Air Engine 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 StantonFrames.
Who made this model?: Designed by StantonFrames, 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.