Jeff Atwood : The Ultimate Dogfooding Story
“… A table saw is an extremely dangerous tool. My saw can cut a 2-inch thick piece of hard maple with no effort at all. Frankly, it's a tool which should only be used by someone who is a little bit afraid of it. It should be obvious what would happen if a finger ever came in contact with the spinning blade. Over 3,000 people each year lose a finger in an accident with a table saw.
A guy named Stephen Gass has come up with an amazing solution to this problem. He is a woodworker, but he also has a PhD in physics. His technology is called Sawstop. It consists of two basic inventions:
- He has a sensor which can detect the difference in capacitance between a finger and a piece of wood.
- He has a way to stop a spinning table saw blade within 1/100 of a second, less than a quarter turn of rotation.
The videos of this product are amazing. Slide a piece of wood into the spinning blade, and it cuts the board just like it should. Slide a hot dog into the spinning blade, and it stops instantly, leaving the frankfurter with nothing more than a nick.
Here's the spooky part: Stephen Gass tested his product on his own finger! This is a guy who really wanted to close the distance between him and his customers. No matter how much I believed in my product, I think I would find it incredibly difficult to stick my finger in a spinning table saw blade. Unbelievable! …”
Like Jeff says, Wow…
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