The first stage of my Optimill Quick Release Moto Lita stering wheel project is now complete, the Momo splined insert is currently sized for a medium press fit - 0.03mm interference.

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The machining revealed some very minor porosity in the Momo splined insert, but absolutely no cause for concern.

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Trial fitting to ensure precise aligment prior to pinning is now required, we also need to integrate the automatic indicator switch cancelation system, but we're definitely getting there thumbs