Logitech G27 Shifter Center Clamp Knob by weabui 3d model
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Logitech G27 Shifter Center Clamp Knob by weabui

Logitech G27 Shifter Center Clamp Knob by weabui

by Thingiverse
Last crawled date: 4 years, 5 months ago
With some 3d printed stiffener mods installed on my shifter, the original smooth center clamp became difficult to reliably crank on to my desk.
After some measurements and test prints, I found that the original bolt was based on a T16x4 trapezoidal/acme thread, with 3mm thread depth instead of the typical 4mm. Attached a sketch of the profile and SolidWorks file for reference.
I only own a G27, but I'm assuming the center clamp is similar on a G25 too.

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