Is this 3D model free to download?

Yes, Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy 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 Eric G Harrell, 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.

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy 3D printable model by Eric G Harrell

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy photo 1

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy photo 2

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy photo 3

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy photo 4

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy photo 5

Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy

Source: MyMiniFactory by Eric G Harrell

The Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy is a free printable 3D model from MyMiniFactory by Eric G Harrell. This is one of the most complex models you'll see. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

1,284 saves Source: MyMiniFactory Updated 2026-09-18

Tags: engine, model, toy, 4x4, 4wd, pickup, transmission, transfercase, toyota, educationaltoy, 22re, 4cyl, 4cylinder, TGwinners

About this model

This is one of the most complex models you'll see. It will test your printers reliability and endurance so make sure you have a well tune machine before printing. Every part was designed in SolidWorks with 3D printing in mind. All printing was done on a homemade RepRap original Prusa and homemade Kossel mini. The engine features working pistons, crankshaft, valves, cam, rockers, etc. If you have never assembled or seen inside an engine then assembling this with give you a good idea. The transmission and transfer case are fully functioning too. Shift through the gears and see the rotational output speed change. Learn how a transmission works!!! You can see the engine, transmission, and transfercase working by clicking the links below.

Frequently asked questions

Is this 3D model free to download?: Yes. Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy 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 Eric G Harrell.
Who made this model?: Designed by Eric G Harrell, 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.