They should be any multiple of the tooth spacing plus half a tooth spacing.
Your tooth spacing (pi x diameter) / number of teeth = 0.314" So the available spacings between the sensor are: (0.314 x 0) + (0.314 / 2) = 0.157 (0.314 x 1) + (0.314 / 2) = 0.471 and so on... You won't get a perfect quadrature but it should be good enough. Les On 17/02/2020 21:20, Gene Heskett wrote:
Greetings all; Given that the bull gear in this lathe is exactly 6" in diameter at the outer face of the teeth; Given that it has 60 teeth; Given that the ATS-667's are mounted so as to clear the teeth by about 10 to 15 thou and they are slightly thicker than 5/32" inch. That would add about 3/16" to the radius of the arc they are mounted in, or 3/8" to the diameter; The mounting bracket currently has a slot per ATS-667 with around 1/16" of sideways motion per pocket; How far apart are they to be to output a good quadrature signal? Mounting them with JBKwik weld seems to be a lot less forgiving because its not possible to move them a few thou to fine tune like it was when using relatively flexible goop. Or do I need to redesign the bracket to make one holding slot adjustable somehow? Thanks all. Cheers, Gene Heskett
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