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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Most saws will cut through your finger no problem. Those fitted with Sawstop detect the capacitance of your finger; basically you are much soggier than wood and the system can detect that.
Most saws will cut through your finger no problem. Those fitted with Sawstop detect the capacitance of your finger; basically you are much soggier than wood and the system can detect that.
It’s very important to note right up front that **only saws with this safety system installed will do this.** Other saws will happily cut your fingers off.
That said: it’s a safety system installed on some saws. An electrical current runs through the blade, and when it touches your finger the safety system detects the change. This causes a device below the saw to forcefully grab the blade and make it stop rotating, often with enough force to damage the blade.
Wood doesn’t cause this electrical change, so the system doesn’t activate.
It’s very important to note right up front that **only saws with this safety system installed will do this.** Other saws will happily cut your fingers off.
That said: it’s a safety system installed on some saws. An electrical current runs through the blade, and when it touches your finger the safety system detects the change. This causes a device below the saw to forcefully grab the blade and make it stop rotating, often with enough force to damage the blade.
Wood doesn’t cause this electrical change, so the system doesn’t activate.
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
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
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