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Safety (or the lack thereof) #3: DADO BLADES CAN'T CUT 1 INCH OF HARDWOOD IN ONE PASS

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Blog entry by PASs posted 08-18-2013 12:30 AM 1582 reads 0 times favorited 14 comments Add to Favorites Watch
« Part 2: Fixing what I broke...finishing the exploded bowl. Part 3 of Safety (or the lack thereof) series Part 4: OOPS, there she goesssss »

I’m a BONEHEAD.
I like my Dado blades.
But they have their limitations.
Especially pulling the blade through on your radial arm saw.
Ripping a 3/4 inch dado 1 inch deep in a piece of hardwood tougher than oak (I have mallets made from this stuff) exceeds their ability
When you try anyway the chippers decide to group together in a show of rebellion and the teeth get mad enough to fly off the handle…er…blade.

I knew better.
I was in a rush.
The fix was $75 at saw stop getting new teeth brazed on.
At least the new teeth are better than the old ones.

-- Pete, "It isn't broken, you just aren't using it right."



14 comments so far

View Grandpa's profile

Grandpa

3204 posts in 1422 days


#1 posted 08-18-2013 03:43 AM

WOW!!

View jumbojack's profile

jumbojack

1221 posts in 1371 days


#2 posted 08-18-2013 04:36 AM

good night Irene.
Dado stack $75
Chunk of wood $2.50
Scraping 11 pounds of crap out of your BVDs….....priceless
Good thing youve been living a clean life. This one could have cost you.

-- Made in America, with American made tools....Shopsmith

View BBF's profile

BBF

141 posts in 586 days


#3 posted 08-18-2013 05:48 AM

Reading your tag I see that you are somewhat familiar with not using it right but this time I think that it really is broken.

-- I've never been disappointed buying quality but I have been disappointed buying good enough.

View Lenny's profile

Lenny

1295 posts in 2274 days


#4 posted 08-18-2013 09:20 AM

Thanks for manning up and 1. admitting the mistake and 2. sharing it with us. You don’t mention an injury so I am assuming you didn’t incur one. That, of course, is a blessing.

-- On the eighth day God was back in His woodworking shop! Lenny, East Providence, RI

View stefang's profile

stefang

13632 posts in 2081 days


#5 posted 08-18-2013 09:46 AM

That musts have been some tough wood. Glad you didn’t get hurt, and good of you to warn others.

-- Mike, an American living in Norway.

View Howie's profile

Howie

2656 posts in 1670 days


#6 posted 08-18-2013 10:41 AM

The old adage about big bit small passes would apply here.
Glad you are okay. Sometimes we all have to learn the hard way.

-- Life is good.

View Roger's profile

Roger

15280 posts in 1551 days


#7 posted 08-18-2013 12:32 PM

Yikes Pete! Glad you didn’t get hurt.

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View gfadvm's profile

gfadvm

11502 posts in 1437 days


#8 posted 08-19-2013 12:58 AM

no way can I improve on Jumbojack’s comment!

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View robscastle's profile

robscastle

1880 posts in 951 days


#9 posted 08-19-2013 02:37 AM

I am surprised you could even fit a dado stack on a radial arm saw, their lethal enough with a “normal” blade.

Remember easily digestible bite sized chunks only! goes for the poor radial arm saw as well!

I am guessing it went for a “walk” up the timber.

Remember when tungsten teeth meet is always gonna be a nasty outcome!

Take care we need our LJs.

And post Jumbojacks comment on the wall next to the saw !!

And No you cannot borrow any of my tools!!

Otherwise enjoy!!

-- Regards Robert

View PASs's profile

PASs

573 posts in 1845 days


#10 posted 08-19-2013 03:29 AM

Rob,
I actually have TWO RASs, a Craftsman I can’t seem to sell for anything on Craigslist, and a RIDGID.

Since I can’t get rid of the Craftsman I have both of them set in line with each other.
The Craftsman is now a dedicated DADO machine.
And I’ll admit I have to take the guard off when using the DADO.
But when I do that I lock everything down with clamps and keep myself off to the side with a full face-shield on.

And the blade did try to walk up the wood.

-- Pete, "It isn't broken, you just aren't using it right."

View robscastle's profile

robscastle

1880 posts in 951 days


#11 posted 08-19-2013 11:46 AM

Pete

I checked out some of your links, I hope the finger I saw was not yours!

I also do quite a bit with recycled timber you may want to check it out when you get a moment.

-- Regards Robert

View PASs's profile

PASs

573 posts in 1845 days


#12 posted 08-19-2013 01:49 PM

Robert,
It was me.
And the ER doctor was not amused that I was taking pictures.
I told her it was going on my blog so someone else would be careful with that tool.

You’d think I’d have learned by now.
But I find that Attention Deficit Disorder (ADD) is a dangerous thing in the work shop.
Usually I watch for signs that I’m not focusing and stay clear of moving parts.
But sometimes, specially at the end of the day, or if I’m rushed, it sneaks up on me and I forget to check the details.

Fortunately, knock on wood, a few minor cuts are the worst of it.
And you’re on my buddies list now.
Thanks,
Pete

-- Pete, "It isn't broken, you just aren't using it right."

View robscastle's profile

robscastle

1880 posts in 951 days


#13 posted 08-19-2013 09:41 PM

Yo Pete!

We all have our days I managed to shoot a brad into my finger when I was building a dolls house for my No 2 sons daughter Caitlin.

Luckily I had a vice on the bench and clamped it into so I could pull it out.

No ongoing problems apart from my finger twitches nervously every time I use the nail gun now! :]

I will enjoy your posts!

-- Regards Robert

View PASs's profile

PASs

573 posts in 1845 days


#14 posted 08-20-2013 12:15 AM

Oh Robert ….
Porter Cable 16 gauge finish nailer with 2 inch nails…
Through pegboard into 2×4 for a customer’s display stand…
Nail turned when it hit the 2×4 and of course turned toward the finger that was just under 2 inches away.

Smart people learn from the mistakes of others…I’M A BONEHEAD.

-- Pete, "It isn't broken, you just aren't using it right."

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