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View grosa's profile

How fast and dangerous is a table saw kick back

by grosa
posted 09-15-2012 12:54 PM


28 replies so far

View grosa's profile

grosa

912 posts in 1583 days


#1 posted 09-15-2012 01:01 PM

Every time I see this video I get a chill up my spine and goose bumps.

-- Have a great day.

View whitebeast88's profile

whitebeast88

3606 posts in 944 days


#2 posted 09-15-2012 01:13 PM

wow!thanks for sharing.that was scary seeing how close his finger came to the blade and how hard the board went into the blanket.

-- Marty.Athens,AL

View muleskinner's profile

muleskinner

740 posts in 1190 days


#3 posted 09-15-2012 01:14 PM

I watched that video until he went to the close-up slo-mo on how close his hand came to the blade – I couldn’t watch that.

-- Visualize whirled peas

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a1Jim

112939 posts in 2331 days


#4 posted 09-15-2012 01:17 PM

scary stuff for sure,like you said I spent years avoiding kick back.

-- http://artisticwoodstudio.com Custom furniture

View grosa's profile

grosa

912 posts in 1583 days


#5 posted 09-15-2012 01:17 PM

It hurts just watching it, knowing what he is going to do before he even starts cutting!

-- Have a great day.

View hamburglar's profile

hamburglar

42 posts in 853 days


#6 posted 09-15-2012 01:21 PM

I watched that video a while ago, but it’s impact is still pretty strong.

At the job I just left none of the TS’s had splitters or guards, and they all had numerous mechanical issues as well. I had a piece kick back like he was showing and catch me in the stomach. It was hard enough that I had to take a couple of minutes and recompose myself.

View toolie's profile

toolie

1774 posts in 1382 days


#7 posted 09-15-2012 01:49 PM

the guy doing the demo is a regular over @ woodnet and he posted this about a year or so ago over there. after my relatively minor 2 stitch encounter with a TS blade 8 years ago, i’ve never allowed my hands anywhere near as close as his came to that blade. his “after i changed my shorts…...” comment about sums it up.

-- there's a solution to every problem.......you just have to be willing to find it.

View Lee Barker's profile

Lee Barker

2169 posts in 1604 days


#8 posted 09-15-2012 01:57 PM

I calculated TS blade tip speed once and if I remember correctly, it’s about 100mph.

Kindly,

Lee

-- "...in his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View Blackie_'s profile

Blackie_

3668 posts in 1266 days


#9 posted 09-15-2012 02:34 PM

Those push blocks he was using weren’t the right kind to use for a table saw either, he failed to mention that in his video, I custom built mine in which places my hand way above where his was and my pushers also have a drop down lip that rest up against the back edge of the board while pushing it to give it a no slip option also helps keep the board plum with the blade and the fence not allowing any turning what so ever.

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at http://www.facebook.com/randy.blackstock.custom.wood.designs

View ShaneA's profile

ShaneA

5453 posts in 1352 days


#10 posted 09-15-2012 02:36 PM

Yeah, I thought I read once it was about 104-105 mph. Trust me, from experience, its fast and hurts. I took a piece of quarter round I was ripping free (like an idiot) to the stomach. Huge bruise and a permanent imprint of quarter round on my stomach to remind me. Good lesson though.

View LukieB's profile

LukieB

942 posts in 1084 days


#11 posted 09-15-2012 02:56 PM

Yeah, at least that guy is smart enough to be aware that, that was the dumbest thing he’s ever done….”A lot of people out there right now calling me a idiot” Well add me to that list…...Idiot

-- Lucas, "Someday woodworks will be my real job, until then, there's this http://www.melbrownfarmsupply.com"

View IsaacH's profile

IsaacH

128 posts in 850 days


#12 posted 09-15-2012 03:19 PM

I just watched an episode of “woodsmith” on PBS…..guess what…..No rivving knife. Now, some dadoes were being cut, and I know theres that whole “safety devices moved for clarity” line, but there should of at least been some mention of the fact.

I have been a painful victim of kickback. I got a bruise on my stomach that lasted for a few months. Luckily my hands were nowhere near the blade…..btw….no rivving knife there either. :-S

-- Isaac- Decatur, GA - "Your woodworking....NOT machining parts for NASA!!!"

View sras's profile

sras

3947 posts in 1883 days


#13 posted 09-15-2012 03:31 PM

Thanks for sharing this. I have a splitter that mounts to my Zero Clearance insert. I’ve had it for nearly a year and it is still in the packaging.

Now I have a new project for the morning – thanks again.

-- Steve - Impatience is Expensive

View lunn's profile

lunn

207 posts in 1062 days


#14 posted 09-15-2012 03:51 PM

A friend went to the ER a few weeks ago from kickback. The wood got him. 31 stitches on the tops of his fingers. OUCH !

-- What started as a hobbie is now a full time JOB!

View Dallas's profile

Dallas

3217 posts in 1241 days


#15 posted 09-15-2012 04:06 PM

That made my stomach hurt just watching it. You know the feeling, like watching as the twin towers fell or as the Challenger came apart.

-- Improvise.... Adapt...... Overcome!

View pintodeluxe's profile

pintodeluxe

3574 posts in 1567 days


#16 posted 09-15-2012 04:14 PM

I have not experienced kickback since highschool woodshop 20 yeras ago. Dull blade, and poor fence.
A splitter helps.
The biggest change is that I use straight freshly jointed lumber. The old woodshop used whatever they had laying around. I also use a magnetic featherboard and saw-handle pushstick. And I would never cut a piece that short.
I guess I have all kinds of safety rules that I use, but don’t even think about.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View IsaacH's profile

IsaacH

128 posts in 850 days


#17 posted 09-15-2012 04:23 PM

Im putting a link to this thread on the safety tips thread I just started!!!

-- Isaac- Decatur, GA - "Your woodworking....NOT machining parts for NASA!!!"

View DocSavage45's profile

DocSavage45

5377 posts in 1596 days


#18 posted 09-15-2012 04:40 PM

Woodworking is a violent action that produces often beautiful results. As my dad said the more power the bigger the mistake. (when i asked to use his power tools as a kid!) Been looking into retro fitting riving knife attatchments. Appears that they only work with straight cuts?

-- Cau Haus Designs, Thomas J. Tieffenbacher

View syenefarmer's profile

syenefarmer

394 posts in 1834 days


#19 posted 09-15-2012 04:50 PM

I experienced kickback once with my table saw and that was enough to make me extremely careful when using it for the rest of my life. Fortunately, I was standing off to the side and didn’t get hit. My toolbox, which was clear across the other side of the room, was not so lucky and will sport a rather large dent for the rest of its life.

View HorizontalMike's profile

HorizontalMike

6968 posts in 1668 days


#20 posted 09-15-2012 05:30 PM

I saw this about 3-years ago or so, when I was “shopping” for my FIRST real table saw. I have to admit that THAT kick-back was the reason that I went with “new”, because all of the “newer” TS’s had the required Riving knives. I never did like the over-the-blade blade guards and the reviews on them were the pits. The advent of the tool-less removable riving knife finally convinced me to pull the trigger on a new G0690.

FWIW, this is why I would never buy an old/older model table saw, even though many LJs just love their old “unisaws” and such. Nostalgia is just NOT a good enough reason for ME to ignore this (riving knife) feature in the newer saws. SawStop, on the other hand, I CAN ignore. But that is just my 2-cents…

-- HorizontalMike -- "Woodpeckers understand..."

View AJswoodshop's profile

AJswoodshop

1057 posts in 1030 days


#21 posted 09-15-2012 05:38 PM

That is scary! I have only had my TS kickback at me one time. I wasn’t using a riving knife, and the board turned and shot back at me.

AJ

View Bob Kollman's profile

Bob Kollman

1797 posts in 1945 days


#22 posted 09-15-2012 05:43 PM

The guy was an idiot as he said in the video. To intentionally cause a kick back and using a push block that positions your hand within three inches of the saw blade to start is retarded. I make my own push blocks and the small one keeps my hand at 4” above the saw blade. When a board kicks back it is going to take your hand toward the blade.

-- Bob Kenosha Wi.

View Moron's profile

Moron

4725 posts in 2647 days


#23 posted 09-15-2012 06:11 PM

I think if more people saw in person how gory woodworking can be, how the senseless slaughter of fingers, hands, eyes and more, are mangled into pate, beyond repair, tool sales would drop.

For mere mortals like me, I pick up the pieces, lick my wounds, and move forward for victory has sweet rewards in the world of woodworking.

-- "Good artists borrow, great artists steal”…..Picasso

View Ralph's profile

Ralph

164 posts in 887 days


#24 posted 09-15-2012 06:22 PM

Its a good thing I haven’t had dinner yet! My stomach turned upside down !
Thanks for the post. We need to be constantly reminded how quickly we can get hurt.
Like Lee said above, the tip of a 10” blade is running at about 100MPH, or about 145 fps. By the time we realize that something happened , it all over.
Some time ago I did a stupid thing. I was cutting a SMALL piece of thin hardboard on a RAS. I was lucky that I was not standing directly in front of the blade. I heard a bang and the hardboard disappeared. I found it three weeks later, in a closet in the next room. The blade shot the hardboard clean through the sheet rock. I was lucky to come out of this unscathed.
We should revisit that video from time to time.
Thanks again for the post.

-- The greatest risk is not taking one...

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404 - Not Found

2544 posts in 1723 days


#25 posted 09-15-2012 09:23 PM

His hand came close to the blade didn’t it? Too close for comfort.

I personally think those push down push sticks are the worst invention ever – when something like that happens you’re hands may be away from the blade but they’re at the same level.

Scary.

View oldnovice's profile

oldnovice

3872 posts in 2122 days


#26 posted 09-15-2012 09:29 PM

To bad kick backs don’t have the same effect on our congress!

-- "I never met a board I didn't like!"

View Mike Gager's profile

Mike Gager

617 posts in 2021 days


#27 posted 09-16-2012 01:19 AM

he should make another video demonstrating what would happen if the guard and splitter were in place.

View BentheViking's profile

BentheViking

1756 posts in 1318 days


#28 posted 09-16-2012 03:29 AM

I think i’ll reinstall my riving knife tomorrow…

I’ve shared this story before but I was on a job once and bent down to pick something off the floor and someone on the TS had a kickback. My head was directly in line to get hit, luckily my tool bag was on top of the table and took the hit. I was wearing a hardhat at the time oddly enough, but who really wears a hardhat when they are woodworking?

-- It's made of wood. Real sturdy.--Chubbs Peterson

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