The question is: How does table saw finger protection work?
Statistically, there are millions of gruesome accidents caused by table saw usage. In the U.S only, ten incidents relating to amputation happen every day due to this use. Therefore, many companies like StopSaw have been emerging worldwide to raise the safety level when people use the table saw.
In this article, we would like to take the example of SawStop, a business popularizing the concept of saw stop, also called table saw finger protection. The circular saw’s rotating blade will automatically stop any contact with skin or flesh on the blade. The system stops within five milliseconds, which helps prevent the operators from getting injured severely.
How Does Sawstop Operate?
Your finger generates electrical signals, which come in contact with the blade to trigger the brake cartridge located beneath, springing upwards and stopping the saw promptly. You can easily replace these saws’ cartridges and blades. So no worries!
The safety system continuously monitors many low electrical signals in which the blade can withstand while working. These oscillatory motions have a feature of 200kHz, 12V electrical signals, which cover over the small plate of one blade side.
With the other side of the blade, the threshold detector will receive the signal and then spot the movement below the threshold as hitting human flesh happens.
However, it will instantaneously fire if there is any 25-microsecond signal lost. Therefore, we recommend using a 10-inch blade whose tooth will keep hitting the human flesh for 100 microseconds. The detector can uncover this contact with the flesh’s one tooth contact with the blade of this size.
Further reading: SawStop Safety Table
How Many Phases Does The System Possess?
The system operates based on four elementary phases: monitoring, detecting, activating the brake and resetting.
Phase 1 and 2: Monitoring and Detecting Signal
The primary phase involves the blade picking up a pulsed oscillatory motion. Once the skin gets hit by the blade and supposing that the human skin is conductive, the signal will be different. With this change in the movement, the safety system of the blade gets stimulated, starts protecting fingers, and helps avoid more severe injuries.
Phase 3: Activating the Brake
The blade stops spinning in five milliseconds after the aluminum brake hits the spinning blade all of a sudden. The momentum generated from the blade at every angle causes the blade to proceed below the table, hindering the skin’s contact with the spinning blade. Such operation also ensures user safety when its motor’s power stops running afterward.
Phase 4: Resetting the SawStop
After the second phase of brake activation, you can move on to the final stage, resetting the table saw finger protection. And it is pretty easy to reset.
Resetting the saw involves altering the blade and replacing it with the brake cartridge. By doing so, the table saw will operate normally again. This stage commonly takes about five minutes. Easy peasy! Right?
Does The Table Saw Finger Safer Have Any Limitations?
SawStop company is aware of the restrictions and limitations of its table saws’ design. They are:
- Deactivate the system of SawStop break if you work on timber that is wet and green.
- Avoid using non-conductive teeth from non-conductive blades, especially when you select SawStop to protect your fingers.
- This engineered braking system works well with kerfs which feature 3/32″ -3/16. Only thinner or thicker kerfs limit the braking system’s ability to operate efficiently.
- The blades will quickly get damaged once you activate the braking system.
Are There Any Caveats While Using This Tool?
It would be best if you took off the gloves while using the SawStop. The reason behind this is that wearing gloves can prevent you from taking full advantage of the benefits and functionality of its braking system. However, this table saw finger protection has a good feature that it works well in any environment. How great it is!
Every single blade guard wears an acrylic cover. Without this cover, cutting the fingers off happens very often. People raise a seem-to-be-good habit of keeping the blades’ plastic covers off because they usually struggle to detect where their blades are lying. Nevertheless, in reality, the practice turns out to be problematic.
To resolve this issue, manufacturers equipped blade guards and table saws with a more visible content and rising covers. Additionally, the production of many higher-quality blade guards with ad-on features has also been popular. Users, therefore, can get benefits from those enhancements. Moreover, many machinists and woodworkers even started creating assemblies of blade guards by themselves in the hope of protecting ten fingers.
Besides not using gloves when using a table saw, we highly suggest you should scrutinize the table saw manual first. It is one of the essential things you should do. Take this safety precaution; otherwise, fingers fly off your hand!
The manual includes so many safety tips that you should make use of while working. You can quickly scan through many interesting safety features and user-friendly instructions teaching you to use the tool so that you can keep yourself safe.
Final Thoughts: How does table saw finger protection work?
After reading our article “How does table saw finger protection work?”, we hope you can clearly clarify your doubts. Also, some safety tips are handy for injury prevention. So follow our advice, or else you will hurt yourself easily.
But if you have any table questions regarding saw finger saver, drop a comment in the box below. We will help you deal with them. It is our pleasure to bring you the best user experiences. Or, if anyone has used any kinds of SawStop, please share with everyone and us.
And lastly, we thank you for your belief and support.