eli5 How woodcutting tablesaws can cut through wood with no issue, but when other material, like your finger, gets in the way of the saw, it shuts down immediately

Question

eli5 How woodcutting tablesaws can cut through wood with no issue, but when other material, like your finger, gets in the way of the saw, it shuts down immediately

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Answer 1

basically they treat the saw as a touchscreen, like your phone, it can sense a finger as soon as it makes electrical contact with the blade and immediately stops the blade, wood is not conductive and therefore doesn’t trigger it

also only some saws from one specific company have that so don’t try that at home