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Limit switches --- mechanical lever arm type vs proximity. There seem to be quite a number of comments here and other places relative to limit switch errors. Apparently these complaints come from users with machines using prox switches for limit switches.
If you look at the number of problems from users with prox switches vs those with mechanical switches, then it appears like HAAS should go back to mechanical switches, or find a way to keep chips away from the prox switches.
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