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Band saw leaving black marks on my wood?

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Forum topic by namrufmot posted 02-07-2016 09:17 PM 557 views 0 times favorited 7 replies Add to Favorites Watch
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namrufmot

54 posts in 499 days


02-07-2016 09:17 PM

Just got a nice old 14” Delta band saw. Thing runs great and even has the coveted retirement light. I did notice that the tires are a bit worn but the thing runs like a champ with no slipping.

Anywho, I cut a few test pieces and it left some black “smears” or “streaks” on the side of the wood. Any idea what would cause this?


7 replies so far

View dhazelton's profile

dhazelton

2520 posts in 1928 days


#1 posted 02-07-2016 09:20 PM

Black as in burns? Dull blade. Too slow feed speed.

View eflanders's profile

eflanders

167 posts in 1482 days


#2 posted 02-07-2016 11:30 PM

Misaligned blade guides???

View Clarkie's profile

Clarkie

406 posts in 1473 days


#3 posted 02-07-2016 11:34 PM

Hello, did you have an old blade on the saw. Could just be pitch left behind on the blade or rust from sitting too long.

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namrufmot

54 posts in 499 days


#4 posted 02-08-2016 12:17 AM

New old blade…it had never been used but is old…it is “black” not silver in color like brand new Olsen blades…

View JAAune's profile

JAAune

1730 posts in 1948 days


#5 posted 02-08-2016 12:19 AM

It seems whatever is causing the blade to appear black is getting on the wood. I can’t think of any reason why an unused blade should be black unless something is on it.

-- See my work at http://remmertstudios.com and http://altaredesign.com

View 716's profile

716

502 posts in 548 days


#6 posted 02-08-2016 12:44 AM

Would be much more informative if you instead of the saw pictures you took photos of the marks.

-- It's nice!

View TheWoodRaccoon's profile

TheWoodRaccoon

364 posts in 561 days


#7 posted 02-08-2016 01:21 AM

Most likely:

-The blade itself is dirty, and transferring/smearing on the wood. The tires and or guides could also be dirty, which would transfer to the blade, and then to the wood.

-The blade is dull.

-Too slow of a feed rate

-- still trying to think of a clever signature......

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