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Ends of board burning when I cut them? Solution?

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Forum topic by Micahm posted 176 days ago 517 views 0 times favorited 9 replies Add to Favorites Watch
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Micahm

111 posts in 239 days


176 days ago

I am working on a project and when I make a cut with my circular saw the plywood burns on the ends where I cut. I am using my new DeWalt 15 amp worm-drive circular saw with a Freud Diablo Ultra finish Blade. Both the saw and the blade are brand new out of the box the same day I cut the wood. I am cutting 3/4 inch Red Oak plywood, so I know the 15 amp saw is not going to be under powered for the job. Could it be the the Ultra finish blade with the 60 teeth doing the burning, or would that not matter? Am I going to slow? If I go faster than the speed I was going, if feels like I am forcing it. Perhaps my blade needs straightening? I just don’t know, any tips or suggestions would be helpful. Thanks!

-- The things I make may be for others, but how I make them is for me. - Tony Konovaloff


9 replies so far

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Loren

6777 posts in 2154 days


#1 posted 176 days ago

How far out do you have the blade protruding below
the saw base plate?

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Tedstor

1369 posts in 1139 days


#2 posted 176 days ago

Feed rate too slow?
Are you using a straight edge? Maybe you’re feeding the saw into the wood at a crooked angle- thus the blade is becoming slightly binded?
60 teeth does seem excessive on a 7.25” blade- for plywood. But I’d think it’d still work OK. Especially if it were new.

View UncannyValleyWoods's profile

UncannyValleyWoods

322 posts in 370 days


#3 posted 176 days ago

You’re going to have to make a sacrificial offering to your saw. Follow these steps.

1. Build a bond fire.
2. Put seven pieces of Ikea furniture onto the bond fire.
3. Pour seven beers on the ground.

This should pacify your saw.

-- http://www.etsy.com/shop/UncannyValleyWoods

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chrisstef

9412 posts in 1512 days


#4 posted 176 days ago

Not the beer! ^

Ok maybe 7 Michelob Ultras but no real beer please.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

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ScottKaye

239 posts in 459 days


#5 posted 176 days ago

Micahm,

Check your fence alignment to your blade. I bet is not parallel. I had this same issue with a POS Craftsman.

-- "Nothing happens until you build it"

View dschlic1's profile

dschlic1

143 posts in 476 days


#6 posted 176 days ago

I second the issue of blade alignment. When I purchased my circular saw, the blade was over 1/8” out of alignment with the edge of the base. It took me the better part of a day to get it lined up. I use a Diablo fine blade and have no issues with burning.

View moke's profile

moke

443 posts in 1282 days


#7 posted 176 days ago

Uncanney—-correct me if I’m wrong, but don’t you have to wear two pair of yellow socks too?
Mike

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UncannyValleyWoods

322 posts in 370 days


#8 posted 176 days ago

moke- I do believe you are correct. Yellow socks and it wouldn’t hurt to wear a pair of his wife’s panties as well (also yellow).

-- http://www.etsy.com/shop/UncannyValleyWoods

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pintodeluxe

3043 posts in 1319 days


#9 posted 175 days ago

It sounds like the feed rate changes near the end of your cut. If the burning only occurs at the ends of the cut, it is likely feed rate. I solved this problem by using an extra-long edge guide, so I could cut past the workpiece without slowing down much.

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

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