Oldwood said:
I think it is important to know how and why accidents happen. I read an article that mentioned almost 80% of accidents on the table saw happen when people reach around the blade to grab a part before it has completely cleared the blade resulting in a kickback drawing that hand back into the blade.
Because of that article I never use a table saw without a good push stick and some sort of out feed table.
I think the more we know about how accidents happen the more likely it is we will avoid them.
This taught me a lesson. Thank you. Most of my mistakes these days are from rushing while fatigued, but this one I would have done just from bad habit, so FWIW this thread helped me for whenever I will next use a table saw.
I'm not using a table saw these days, as the track does nearly everything for me except rip a piece from something slim, but I'm old now and everyone in my memory would grab the part from the table saw at around the time it was clearing the blade. I bet I did it too, but I just can't remember. The move looked so graceful -- Run the piece through, maybe with a safety push stick, but then reach over and give it a little pull from the other side which guides it straight out, and then the piece is in your hand. All the way back to the custom cabinetry shop I worked at in the 1980's, all the workers were thinking about safety, but my (admittedly poor) memory has everyone doing this mistake.
Here's one of my recent mistakes. I was cutting the triangles out of a stair stringer with my TS 55 and the short 800mm track.
Mistake #1:
I prioritized what I thought would be accuracy above what I knew wasn't the safest setup. I wanted to cut against all the lines with the track edge, so in one direction I was plunging the saw in the middle of the 2x12, then driving it toward the edge.
Mistake #2:
I was exhausted but I wanted to finish that riser before ending the day. It's the equivalent of "I bet I can get in one more ski run".
Mistake #3, the real "Oh wow I'm lucky that's as bad as it got":
On the last of the cuts, I plunged and the blade wasn't very close to the vertex of where the tread & riser meet. Instead of leaving that for the jig saw work later, I BACKED UP THE TS 55. Total no-no -- The riving knife wasn't in the groove yet because I'd just finished the plunge. The blade kicked the saw backward, cutting way past the vertex before the saw rode up out of the board and I got it shut off. Just stupidity on my part. I didn't get hurt, so I was lucky for that. Our building code doesn't allow for over-cuts in stair stringers, and that was my last tread/riser cutout to do, so the whole 12 foot 2x12 was now a scrap piece.
On my replacement stringer board, I was well rested and hydrated, I wasn't rushing myself, I drove the saw toward the piece for both the riser and tread cuts, and I didn't bother getting too close to the vertex with the circular saw. The jig saw does a stellar job anyway. When I'm tired I don't recognize when I'm not making good decisions.