Most people are pretty comfortable using a circular saws these days, and track saws like the Festool TS plunge-cut saws are even more comfortable to use and improve user safety.
But what happens when people get too comfortable with something? Keep reading and watch.
This first video shows a gentleman using his circular saw in a manner I suggest the manufacturer did not intend. The saw was probably not designed to take to take lateral forces, and the blade was probably not intended for this type of use either. The gentleman seems to disregard most common sense rules about circular saw safety like a ensuring a stable workpiece, upright stance and secure footing, keeping your body at a distance from the blade and out of the path of any unexpected kick-back, etc.
So here goes (don't worry, no gore)...
In the end the saddle doesn't even fit properly and it took longer to achieve than using a hammer and chisel.
Then you can be sooo comfortable with your power tools that you might even do this...
This in an excellent example of how NOT to use a circular saw or a drill press. Imagine what would happen if he hit that threaded rod with the saw blade. It would be ugly!
If you see these videos around the web, there are many viewer comments stating the obvious inappropriateness of these actions. Then surprisingly there are comments supporting these 'techniques'. Comments like, 'the guy's obviously experienced and knows what he's doing', and 'it's ok, he's got a firm grip on the saw'.
Over-confidence through familiarity is unlikely to help the operator given an simple slip up or distraction. In the event of an incident, the speed at which the user can come into contact with the spinning saw blade is so fast it's difficult to see what happens, even when replaying the video in slow motion. A demonstration of how fast things happen, what you don't see with the naked eye, and how close you can come, will be in next weeks article.
Circular saws are pretty safe these days, but only when used in a correct manner as they were intended to be used. Not as substitute routers, lathes, chisels, can openers, or anything else.
Can you suggest any other things NOT do do with a circular saw? Stuff you've seen that you'd shake your head at?