Is this 3D model free to download?

Yes, Radial Piston Engine Model 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 plusalphaDesigns, 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.

Radial Piston Engine Model 3D printable model by plusalphaDesigns

Radial Piston Engine Model

Source: Thingiverse by plusalphaDesigns

The Radial Piston Engine Model is a free printable 3D model from Thingiverse by plusalphaDesigns. This is a hand-cranked model of a 8 cylinder radial engine. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

4,379 saves Source: Thingiverse Updated 2026-10-09 License: CC-BY-NC-SA · non-commercial 19 makes Category: Toys & Games

Tags: aircraft, airplane, engine, hand crank, mechanical, mechanical toy, model, piston, Radial Fan, rotary, working

About this model

This is a hand-cranked model of a 8 cylinder radial engine. The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel (source: Wikipedia). To assemble, print the following parts, and follow the assembly procedure. - Cylinder Block - Handle - Rotor - Pin - Hub Bottom (Requires support) - Hub Top - Piston (x 8ea) - Rod (x 7ea) The "un-sectioned" cylinder block is also uploaded, but I have not tried printing it (I am not entirely sure if it the parts can be assembled into it). I designed in some slack in each of the parts, but you may want to make sure that all parts fit with sufficient clearance for smooth motion. EDIT: I was notified after publishing this model that 4 stroke…

Frequently asked questions

Is this 3D model free to download?: Yes. Radial Piston Engine Model 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 plusalphaDesigns.
Who made this model?: Designed by plusalphaDesigns, 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.