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Airy shift knob — image 1
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Airy shift knob

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Ergonomic, lightweight shifter knob. Printed without supports

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ErgoShift – Custom shifter knob for the Thrustmaster TH8S

3D-printable knobs for the Thrustmaster TH8S Shifter, ‘Shift your way’.

An accessory that not only looks great and takes the visual appeal of your sim racing setup to a whole new level, but above all improves the ergonomics and overall feel of every gear change.

Key design features:

  • Perfect compatibility: The model is precisely dimensioned for use with the official Thrustmaster TH8S adapter. Simply print it, fit it, and you’re ready to race.

  • Ergonomics and grip: Anatomically shaped for your fingers / Textured surface for a more secure, non-slip grip / Stylish design.

  • Easy 3D printing: The design is optimised for standard FDM printers. No supports required! And anyone can print it.

  • High stability: Fits securely onto the adapter, so it doesn’t twist during sharp gear changes.

Recommended print settings + filament:

  • Material: PETG or PLA (I recommend PETG for greater durability during prolonged use

  • Layer height: 0.10 mm – 0.20 mm (ideally 0.15 mm or less for a smooth, comfortable surface).

  • Infill: 20–30% (I recommend Gyroid for good weight distribution and strength).

  • Perimeters: 3–4 for maximum thread strength and internal stability

Please note: Designed for the Thrustmaster TH8S gear stick. This is a third-party accessory and not an official Thrustmaster product. Fitting tolerances may vary depending on printer calibration, material and print settings; this part CANNOT BE SCALED.

Assembly:

Download and print this template and the official Thrustmaster TH8S adapter.

Fit the adapter onto the TH8S gear stick shaft.

Screw the printed knob onto the adapter and tighten it securely.

Enjoy a whole new gear-changing experience!

Have a great time on the track! 🏎💨

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