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Wood smokign when cutting with Miter saw, Help

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Forum topic by Brandon Whelan posted 647 days ago 3278 views 0 times favorited 17 replies Add to Favorites Watch
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Brandon Whelan

13 posts in 651 days


647 days ago

When I’m cutting with my dewalt 12in. miter saw it seems to not cut as quick as it did the first few times (I’m new to wood working and have only used it a few times) and there is also a lot of smoke, which never used to happen. The blade seems to be square. Could it be that the blade is warped or maybe some other problem with the blade?


17 replies so far

View Luke's profile

Luke

521 posts in 1799 days


#1 posted 647 days ago

Check that you don’t just have a dull blade. Unless the motor is smoking. Perhaps you cut some metal with it at one time?

-- LAS, http://www.abettersign.com

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jmos

678 posts in 875 days


#2 posted 647 days ago

What wood are you cutting? Pitch can build up on a blade and cause smoking even thought the blade is sharp (it can’t properly dissipate the heat.) Pine can be particularly bad, is is pressure treated lumber.

-- John

View Walnut_Weasel's profile

Walnut_Weasel

360 posts in 1727 days


#3 posted 647 days ago

Silly question – is the blade on backwards? I hear these symptoms often with bandsaws and it is often the result of the teeth pointing the wrong direction. I have put my blade on backwards on my tablesaw but luckily noticed it before I turned it on.

-- James - www.walnutweasel.wordpress.com

View teejk's profile

teejk

1191 posts in 1190 days


#4 posted 647 days ago

walnut

most of us have been there…just a question of whether we admit it (my confession is a dado set that I thought I could stack in my sleep…one of the outside cutters was wrong…hard push, a little smoke and a crappy cut).

now I wake up before I stack it.

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teejk

1191 posts in 1190 days


#5 posted 647 days ago

back to the question…what wood? new saw? (the “stock” Dewalt blade used to be about the best blade available…I finally retired mine after about 7 years of what I can only say was abuse with a mix of treated lumber, laminate hardwood flooring, etc.).

and then we get to “square”. across the table is easy enough to check but are you perp? your combination square set on the table with the blade going up across the blade (avoid a tooth) can tell you that. Dewalt does a good job on their flat stops but that tilt thing is trial and error.

View Loren's profile (online now)

Loren

6775 posts in 2153 days


#6 posted 647 days ago

You got the saw new?

Did it come with a carbide tipped blade?

OEM steel blades shipped with some saws get dull fast.

View Ted's profile

Ted

1668 posts in 716 days


#7 posted 647 days ago

Brandon, you still with us here? :)

Teejk, I once forgot I had a diamond blade on my circular saw when I went to make a plunge cut on some flooring, but I’ll never admit to having done that. :]p

-- I support the 28th Amendment. http://www.wolf-pac.com/28th

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teejk

1191 posts in 1190 days


#8 posted 646 days ago

Ted…you just admitted it…but that’s why they sell brown caulk!

View Brandon Whelan's profile

Brandon Whelan

13 posts in 651 days


#9 posted 646 days ago

Hey sorryy I’ve been working on a project all day.
The only woods I have cut are oak and pine. The oak was a few moths ago and that cut fine. Lately I’ve been cutting pine and it’s been smoking pretty bad. The blade is the original blade from dewalt and I’ve only used it maybe ten times cutting a few pieces each time.
The blade is a 12 in dewalt general purpose.

View BentheViking's profile

BentheViking

1692 posts in 1069 days


#10 posted 646 days ago

Try giving it a cleaning to get some pitch off of it

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

View Brandon Whelan's profile

Brandon Whelan

13 posts in 651 days


#11 posted 646 days ago

I’ll give that a try tomorrow morning and do a few test cuts. Any tricks to clean it?

View jmos's profile

jmos

678 posts in 875 days


#12 posted 646 days ago

There have been a number of threads about that topic, a quick search should turn up some good options. I’m using a cleaner I bought from Rockler that works pretty well, but I understand household cleaners like simple green work pretty well too.

-- John

View Surfside's profile

Surfside

2898 posts in 679 days


#13 posted 646 days ago

Maybe you’re cutting with a very high speed with your miter saw. You can put some coolants on your blade to lessen heat and would eventually lessen smoke. There are a lot of coolants available in the market, most generally applicable for any type of machine.

-- "someone has to be wounded for others to be saved, someone has to sacrifice for others to feel happiness, someone has to die so others could live"

View Brandon Whelan's profile

Brandon Whelan

13 posts in 651 days


#14 posted 640 days ago

Sorry I went out of town and completely forget to reply back…
I ended up cleaning the blade with a scraper, brass brush, and simple green. That seemed to solve the problem. There was a bunch of junk built up along the teeth and the sides of the blade.
Thanks for all the help everyone!

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jmos

678 posts in 875 days


#15 posted 640 days ago

Always happy to hear it was an easy fix!

-- John

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