I would assume that the additional resistance of a finger is fairly negligible compared to the density of hardwood or metal
In: Engineering
Seeing a lot of not quites in this thread. My freshman year of electrical engineering degree that I never finished, the guy who invented saw stop came and demoed his saw and gave an explanation of how it works. It’s not about current.
The cartridge monitors the capacitance of the blade. When the capacitance of the blade (and whatever its touching with relatively low resistance) drastically rises, it triggers the brake. When you touch the blade, the cartridge sees more capacitance and triggers. This is why wet wood or wood with nails can trigger it. The wet wood can hold charge much better than dry wood, so it is able
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