Give your Thrustmaster TH8s shifter a custom look with these 3D-printed parts. This design allows you to use filament colors that match your cab’s color scheme. You can also add custom graphics or easily change the entire H-gated pattern without having to unscrew it with every swap. The gated plate is magnetically attached and makes it easy to change from an eight-gear pattern to a four-gear arcade-style H-pattern. The STL files include a “Spec Miata” ring design with a checkered flag motif, a “GT Racing” ring design, and a blank ring for those who prefer to add their own graphics. Download the STL files and give your shifter a custom look.

The ring designs can be glued to the gated shifter plate with CA (cyanoacrylate) glue. 3D-printing the rings with graphics also requires a filament color change during printing. If you have a single extruder, check online for a tutorial on how to change color with a single extruder and your slicer of choice. The photo above shows the “GT Racing” ring design with a checkered flag motif printed with California Filament Candy Red PETG and Overture White PETG.

With the colored ring glued to the gated shifter plate, the entire 3D-printed part can be easily swapped because the design uses magnets to secure it. This makes changes easy since you don’t need a screwdriver to change the gated shifter plate. You can simply snap it on or off. The photo above shows a plain-colored ring without graphics that is printed with California Filament Golden Yellow PETG. Please note that the “Senna-themed” shifter knob is not included in this set, but STL files can be purchased separately.

The 3D-printed part with the gear slots needs to be printed with a strong and durable filament such as PETG. This part can take a lot of abuse, depending on your gear-changing style. If you break the gear slots during gameplay, then consider printing with a stronger filament.

Adding this mod to the Thrustmaster TH8s shifter requires disassembly of the shifter. The 3D-printed parts are a direct replacement and reuse the original screws of the TH8s. The original shifter parts are not altered, and the entire mod can be undone without any damage to the TH8s parts. This design requires the use of small but powerful neodymium magnets, which need to be purchased separately. The magnets are secured to the 3D-printed parts using CA (cyanoacrylate) glue or Shoe Goo. Check out this video (by Sim Racing Corner) demonstrating how to disassemble the Thrustmaster TH8s housing.

The magnets need to be glued to the 3D parts with the correct poles lining up. They need to come together when the parts are nearby and not repel one another. The photo above shows the size of the magnets relative to a penny.

More about this project:

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3D Design Format: STL

3D Model Size: 122mm x 121.92mm x 15.78mm

Supports Needed: Yes

This 3D STL file can be purchased and downloaded from:

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About Marlon Lopez

I enjoy collaborating with artist, photographers, designers and gear heads. I find inspiration while driving the most perfect driving roads imaginable in California. I have experience in print design, web design, advertising, corporate identity, brochures, printed directories, direct mail, interactive design, and 3D printing. My design solutions emerge from a comprehensive design process, and a understanding of my clients needs.

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