One of the most risky crafts in the world is carpentry. It takes years of experience to cut a plank and bring it into the desired shape. Those precious hands of carpenters are very susceptible to damage when they dig up beautiful woodwork; because as you know them with saws they are working.

But the development of technology also saves lives here, of course. Entering the life of carpenters for the past 10 years With SawStop technology Thanks to the saws produced, the system stops abruptly as soon as the finger approaches this saw. So how can these saws detect and stop the finger so suddenly?

Let’s look at this process first: what happens when the finger approaches the saw?

If your finger gets close enough to touch the saw while moving a piece of wood to cut on a saw with SawStop technology, the mechanism under the saw immediately pushes the braking object toward the saw. Thus, the saw is stopped by breaking; in front of An object rotates at a speed of about 40 kilometers per hourIf you want to stop it with an object, you break it.

Once the saw is stopped by the object, it will suddenly retract into the slot. The reason for this is that if the brake mechanism fails, the saw must be pulled down and left to turn, If necessary, it will damage the mechanism, but so that the finger does not break.

We found out how it stopped, so how do these saws detect the finger?

The finger detection mechanism of the SawStop technology depends on the electrical capacitance of the finger, or in technical terms. ‘capacity’ relies on. Capacitance is like static electricity. A capacitor (in this case a finger) is a thin sheet of metal into which you can put a lot of electrons.

The SawStop system sends an electrical signal to the blade and measures how much is absorbed and returned by the blade. Here the saw is the metal plate in the capacitor. When you touch the blade of the saw and that first saw tooth makes contact, your body is now electrically connected to the saw.

This connection between your finger and the saw significantly changes how the saw’s electrical signal is absorbed and returned; in front of your body is a much bigger capacitor than the saw and can absorb many more electrons.

The saw detects this change in capacity and activates the brake mechanism to fire behind the blade. stops at the cost of breaking. To stop the saw first it should touch your fingerbut the SawStop sensors activate so quickly that you only have a small scratch on your finger.

In summary, this technology is very similar to our smartphone screens, which don’t work with gloves, but detect when touched with bare fingers. The condenser sensors on the saw cannot detect wood because the wood is dry and cannot conduct electricity. However, the finger is perceived as a conductor and the sensors are activated.