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Gray Code Encoder

by Dave_Flynn, published

Gray Code Encoder by Dave_Flynn May 7, 2013
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Gray Code Encoder by Dave_Flynn is licensed under the Creative Commons - Attribution license.

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1730Views 409Downloads Found in Robotics

Summary

I needed an absolute shaft angle encoder for a project I'm working on and decided to print my own. I've printed the 5 and 6 bit versions, but not the 4 or 7. Enjoy.

Instructions

As is it fits a 1/2" shaft uses an R8Z bearing and #4-40 screws. There are constants at the beginning so these things are changeable. You may want to add a mounting ear or otherwise modify the mount to fit your project.

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Interesting, but how would you align it to a standard stepper motor's step count with the missing counts.

This is really nice... have you heard of Single Track Grey Code Encoders?
More resolution, less space:
http://techref.massmind.org/techref/io/sensor/pos/enc/greycodes.htm

Did it end up working well for you?

Yes, it tells me shaft position so I know if the motor has stalled and how far I have gone.

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