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Greg,
It is OK for sectors not to be in the same plane after grinding and polishing in the jig (like you did). I mentioned this because I thought you didn't know about it, my apologies :-)
You should have better results now, but pay attention to shafts as well, as they will be contributing factor as well.
PE is created mostly in the last transmission stage, because the contribution of the previous stages will always be divided by the reduction ratio of the last one. In your case it could be ~50 (judging by the size of the jig on photos)
Last edited by bojan; 08-10-2020 at 09:01 AM.
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