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Rainbow Rotors

posted Jun 5, 2018, 2:31 PM by Doug Sinclair
We are now making RW3-0.06 wheels in large volume, on slightly different CNC lathes than before.  The new rotors have a beautiful rainbow iridescence to them.  I believe this is because the tooling marks are now spaced by a distance comparable to a wavelength of visible light, causing them to act as a diffraction grating.