Pitstop Wheel Gun – Shifter Knob for Thrustmaster TH8S

Bring the pit lane to your sim racing setup!

Inspired by the wheel guns used by professional pit crews, this custom shifter knob brings a bit of pit lane atmosphere to your sim racing setup.

The design combines the distinctive look of a racing wheel gun with a sturdy, ergonomic and modular construction. It has been designed with multi-color 3D printing in mind, but can also be printed without a multi-color setup, giving you the freedom to use your own color combinations.

To complete the look, the design includes a separate racing socket. Besides adding to the authentic wheel gun appearance, the socket also doubles as a headset holder. A dedicated wall mount is included, allowing you to mount it to a wall, desk or other suitable surface and keep your headset within easy reach.

There are two grip options available: one with a functional trigger and one without. The rear section of the wheel gun is also available in two versions: one with the Thrustmaster logo and one without. The blank version gives you the option to add your own logo or custom text.

For the main body, you can choose between a single-piece version that's easy to print and a modular version designed for those without a multi-color printer. The main body also includes space for optional weights, allowing you to add extra weight for a more solid feel.

The modular design makes it easy to expand and customize the shifter with additional grip options, different designs and other modifications. This also leaves plenty of room for future additions and personal touches.

3D Print Files

The print files are provided in both .3MF and STL formats.

All models are designed to print without the need for supports.

I recommend using a brim when printing the Trigger_pin, as it is quite small and relatively long, which can make it less stable during printing.

I've also included a 3D-printable M4 hex screw. However, for better strength and durability, I recommend using a real M4 screw or a 3.5 mm / #6 screw with a maximum length of 10 mm.

Print Details

The recommended print settings, orientations and other details can be found in the provided .3MF files.

Recommended print settings:

• Layer height: 0.2 mm

• Infill: 10% Gyroid. For smaller parts, I recommend using at least 15%.

• Supports: Not required.

• Print orientation: As provided in the .3MF files.

• Material: PETG recommended.

• Nozzle: 0.4 mm.

• Bed adhesion: A brim is recommended for certain parts. See the individual print files for details.

These settings provide a good starting point, but you may need to adjust them depending on your printer, print speed and other factors.

Assembly & Parts Needed

No additional hardware is required to assemble the model. However, I recommend using M4 x 10 mm bolts or 3.5 mm / #6 screws to secure the rear section to the main body.

For assembly instructions, refer to the provided GIF or exploded view. The assembly is quite straightforward and should be easy to follow.

To assemble the knob on your TH8S shifter, please use the provided adapter and mounting instructions by Thrustmaster, which can be found here:

Thank You / Enjoy Printing!

I’d love to hear your feedback, and if you have any questions or suggestions, feel free to reach out.