Quote:
Originally Posted by Bugeater
My fear goes back to high school woodshop when I was cutting a top for a nightstand on a table saw, and the saw grabbed the piece out of my hand and shot it across the shop. Still to this day don't know what I did to make it do that, but that machine earned my full respect that day.
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Kickback.
My guess is that your workpiece was just a little too wide for it's length. When that happens, the backside of the cut can 'grab' at the tooth and the front of the workpiece doesn't have the leverage to hold it down anymore. So it walks up the blade and the blade, because it's spinning towards you, rockets it at you.
The big BIG problem with kickback is your right hand and its tendency to follow the workpiece. When a piece kicks like that (as opposed to a bind that's easy to deal with), it goes up, left and then back...when your hand does that as well, it goes up, left and then into the ****ing blade. That's why you always use a push-stick; that way the piece runs off the push stick and your hand doesn't follow. A push block helps even more.
So, some easy fixes for it and the easiest is a simple splitter. Microjig makes universal ones that go on older saws and work great. Newer saws have what are called riving knives that do the same thing. Kickback paws also exist but I hate them; they grab when you don't want them to.
But you're right, man. Kickback is terrifying. I was building some drawer bottoms with 1/2 ply. Since it was completely square, it was a kickback waiting to happen (like I said, wide and short is a recipe for disaster). I got through about 6 and at about 1 AM one of those things fired back at me. I tried to save it with my left hand around the back of the blade (because I saw it hop first) and all it did was fire into the top of my left hand and sheer some skin off before hitting me in the hip. Took me about 10 minutes to get my heart rate back under control but by God, I was finishing those ****ing drawers....
So a couple of my shot drawers may or may not have blood on the underside of the bottoms.
My saw is a deathtrap. No board buddies, no splitter, no nothing. My buddy is a no-shit craftsman and has built some amazing stuff and he's terrified to work with it. But it's got a great blade and it's a 3 HP, 220 saw so it cuts like butter. With my Vega Pro fence, that saw is a miracle worker and I just don't want to mess with that. I have some of those micro jig splitters, I just haven't gotten around to installing them yet. It's probably gonna be a lot harder to do once I lose a couple of fingers but I suspect that will be the catalyst.
The right safety devices and a willingness to use them makes a huge difference. I have the former....just not the latter.