Video of tablesaw kickback

[Anonymous]

For anyone who has not seen or experienced kickback before, here is a vid i found of it happening on a table saw.

http://www.metacafe.com/watch/910584/ta ... nstration/

How scary is that! That could do some serious damage and shows why it is best to stand at the fence side of the blade.

Happy ripping, Steve.

 

[Slim]

Yep, bad things can happen.

Thanks very much for posting that.

If anyone wants more evidence at how bad it can be, there is a video on youtube of surgeons removing a chunk of wood from some poor guys face after a kickback accident. (I won't post it here - not for people with a weak stomach)

 

[Karl]

That is an excellent demo - particularly liked the slow-mo shots.

Cheers

Karl

 

[harryc]

I admit it can happen but the risks of kickback must still be tiny compared to the risk of getting your fingers caught in the blade.

It's quite obvious in the video the demonstrator was holding the peice of wood in such a way ie not holding it at all that you would expect the peice to go flying.

Harry

 

[gardenshed]

I see no riving Knife :shock:

 

[Waka]

A lot of things missing such as riving knife and guard. I get the feeling the way he was trying to force it through the blade that the fence was not set up right.

Allin all a good video to remind us of the dangers.

 

[chunkolini]

What happens with a hand held circular saw? I use one occasionally and feel very wary of it.
A scary video indeed.
obviously he was demonstrating the effect, but it worked.

Chunko'.

 

[Anonymous]

Yes you can see the guy push the wood sideways into the blade to mimic it binding between fence and blade. I would like to see him try that with the riving knife in place to see how much it helps reduce kick back.

Steve.

 

[Tom K]

Waka said

A lot of things missing such as riving knife and guard. I get the feeling the way he was trying to force it through the blade that the fence was not set up right.

I guess they might have stopped it kicking back into the conveniently placed ply eh? Good job the camera was running. :lol:

Chunkolini said

What happens with a hand held circular saw? I use one occasionally and feel very wary of it.
A scary video indeed.

Thats the best attitude but at least they usually switch off if they come out of your hand.

Regards Tom

 

[Losos]

I agree, at the end he definately twists the wood so that the rear of the blade picks up the piece and then it will always chuck it across the floor.

I never remove my riving knife (And only rarely the blade guard)

Also, for sheet material I would use my 'hold down' and the sliding table, I suppose I'm fortunate to have that facility.

 

[jonny boy]

Hi,
When the dreaded kickback happens, it seem's to be when cutting thin ply and other thin sheet materials.

cheers,
jonathan.

 

[NeilO]

A true demonstration....
he knew exactly what was going to happen, just look where he was standing...... regardless of him pushing the wood onto the blade.

But its a good reminder or lesson (to those who have not experienced it first hand) just what WILL happen without all those safety measures we sometimes take for granted (not even use in many cases :shock: )

 

[David C]

GREAT DEMO

I do this one with all my students and a square of polystyrene.

It is impossible to appreciate the speed (approx 140 miles per hour) and ferocity of kickback if you haven't seen it, by which time it may be too late........

David Charlesworth

 

[kafkaian]

As with anything to do with the saw table, health and safety reminders are always welcome!

Never happened to me yet, but although a contrived demo, this keeps me ever vigilant. Fingers crossed!

 

[carpenteire]

That was quite frightening really! I remember doing a training course when I wasn't long out of school and I volunteered to assist one of the instructors in ripping up some sheets of MDF into small drawing boards. The instructor was minus a finger, only mid way through the cutting process did he tell me how he came to lose it: on the very saw we were using! This saw had no fence and he would cut the panels "by eye"! This was some time before health and safety initiatives were high on the agenda.

 

[head clansman]

Hi guys

It was what it was a demo , set up, to show you what could happen to any one of us at any time . Now be honest, how many of you have used machinery in the past with guards removed ? Hmm. I said it before any body who removes guards to do some sort of operation on any type of machinery is not only some sort of idiot but the machine is now the wrong machine to do what every he was trying to do making him into that sheet of boarding shown in the video a dense idiot. pity the video didn't go a bit further and show the dents in the sheeting where the ply struck it so many times , just imagine that being your body, not a nice site .

 

[Rknott2007]

he should have put a target on the board!

 

[Gordon T]

Hello all, been there got the t-shirt.

I fell foul of kickback on my large record table saw. It sent a piece of two foot square veneered chipboard ( very heavy ) flying ... it hit me centre of target point first in my stomach. It did'nt bleed for too long, and when I could breath again I showed the wife!!! My stomach was black , blue and yellow for weeks.

I treat the machine with much more respect now, and feel lucky to be alive. I don't use the table saw now unless I really have to.

GT

 

[Digit]

The massive saw I used as an apprentice never had a riving knife, and I remember receiving the inevitable 'clip round the ear' for standing in the wrong place when pushing timber through. Some days later I received another reminder when an 8x6 screamed out of the saw and hurtled down the length of the shop. The usual method of preventing this was to have a second man pulling through, and he would hammer a wedge into the kerf.
I frequently use my saw sans knife and guard as I use it for cutting tenons, but my tenoning jig ensures no danger.
It's horses for courses IMO.

Roy.

 

[head clansman]

Hi guys

when i learnt my apprenticeship we had two circular saws one was 24" the small one the other was a monster 36 " blade which we used for cutting large timber in excess of 12 " even with the riving knife on it used to pinch at time hence why we always used two men one pushing and one pulling with a large lump hammer and a wedge close at hand,

At time when the timber was wet and the blade getting a little blunt it use to to get very hot, (no tungsten tips in those days) and if the timber didn't have a very good grain run to it would wandered off the guard slightly, when the saw blade finished it 's cut and you could see the blade wobbling some time as much as an inch or more as it broke though the timer , it made me cringe then and even now when i think about it as i was in direct line of the saw blade , if any thing had happen it would all have been over in a blink of an eye. thank god it didn't.

I remember many yrs ago we heard that in a Weymouth timber yard that no longer exist in there mill whilst cutting timber for an order one young joiner escaped instant death by inches when a blade shattered and a piece flew out and embedded in a solid stone wall directly behind t him at head height, apparently the blade hit a large lump of metal it turn out to be a bullet from the last war embedded in the timber, it hadn't been noticed ( no metal detectors in those day , a very lucky young man indeed. So guys keep safe and keep those guards on at all time that what there fore your safety.