Quote:
Originally Posted by DavidGitz
What we did was drill a hole in the end of the larger shaft, take a shaft that is the right size for the encoder, insert that into the hole and epoxy it in.
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We usually do the opposite of that, turning down the end of our large shafts to fit the encoder. With our ancient lathe, we feel better about turning a concentric protrusion on the end than we do about trying to drill a concentric hole. Plus, we can turn it to the right diameter for exactly the fit we want.