Is this 3D model free to download?

Yes, Model Aircraft Styled Air Engine, Experimental is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" 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 gzumwalt, published on MyMiniFactory. 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.

Model Aircraft Styled Air Engine, Experimental 3D printable model by gzumwalt

Model Aircraft Styled Air Engine, Experimental photo 1

Model Aircraft Styled Air Engine, Experimental photo 2

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Model Aircraft Styled Air Engine, Experimental photo 5

Model Aircraft Styled Air Engine, Experimental

Source: MyMiniFactory by gzumwalt

The Model Aircraft Styled Air Engine, Experimental is a free printable 3D model from MyMiniFactory by gzumwalt. The first in my model aircraft compressed air powered engine series, "Model Aircraft Styled Air Engine, Experimental" was the result of yet another challenge; build a single. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

103 saves Source: MyMiniFactory Updated 2026-09-20 License: DOWNLOAD-SHARE-MAINTAIN-LICENSE-CREDIT-REMIX-NONCOMMERCIAL · non-commercial

Tags: 3dprinted, experimental, AirEngine

About this model

The first in my model aircraft compressed air powered engine series, "Model Aircraft Styled Air Engine, Experimental" was the result of yet another challenge; build a single cylinder compressed air engine using the fewest number of parts, and all 100% 3D printed. Weighing in at a mere .8 ounces (25 grams), this engine requires only 8 3D printed parts (only one more than my "3D Printed "Wobbler" Style Air Engine" design), no purchased parts, and incorporates a rotary valve (as I used before in my "Four Cylinder Air Engine, Experimental" design) with a difference. The rotary valve used in this design was inspired by the 1933 work of Joseph S. Ott (and no, I wasn't around then to see it) which utilizes the propeller axle as both an axle and a valve. The valve timing is determined by the angul…

Frequently asked questions

Is this 3D model free to download?: Yes. Model Aircraft Styled Air Engine, Experimental is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by gzumwalt.
Who made this model?: Designed by gzumwalt, published on MyMiniFactory. 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.