Need Advice Bandsaw scorching

[ashmatash]

I have an old Delta bandsaw that I picked up from FB Marketplace. It was a good deal, but was "well loved" during its previous life in a machine shop.

I spent a fair amount of energy replacing the tires, blades, bearings and cleaning up the "gunk" left behind from years of metal cutting fluid build up. It was quite a mess to take apart, clean and put back together.

Now that I've got it running again but I'm running into an issue where it is scorching wood when I try to make cuts.

Below is an example of a tiny little cut I made and it went right to smoking after less than inch into the cuts.

The seller, who was a Bosch fan, included a few brand new blades. I recently swapped to a newer blade, hoping that would cure my ills, but the new blade burns every bit as bad as the old one.

Are these Bosch blades just garbage, or does anyone know if there is something else I should be looking at?

 

[pop-pop]

Hard to tell for sure, but methinks your blade is installed upside down.

 

[Charlie]

I have an old Delta bandsaw that I picked up from FB Marketplace. It was a good deal, but was "well loved" during its previous life in a machine shop.
View attachment 233175

I spent a fair amount of energy replacing the tires, blades, bearings and cleaning up the "gunk" left behind from years of metal cutting fluid build up. It was quite a mess to take apart, clean and put back together.

Now that I've got it running again but I'm running into an issue where it is scorching wood when I try to make cuts.

Below is an example of a tiny little cut I made and it went right to smoking after less than inch into the cuts.
View attachment 233173
The seller, who was a Bosch fan, included a few brand new blades. I recently swapped to a newer blade, hoping that would cure my ills, but the new blade burns every bit as bad as the old one.

Are these Bosch blades just garbage, or does anyone know if there is something else I should be looking at?

I don't see any "teeth" on that blade and it appears to be installed backwards. What little teeth there are, are cutting from the backside.
Maybe I'm missing something??????

 

[mkepke]

the blade also appears installed upside down to me.

-Mark

 

[Mike Davis]

That blade is extremely dull and running backwards. You need a new blade and be sure the teeth point downward toward the table.

 

[Ricksmi]

Yep the blade looks very dull and it is for sure running backwards, surprised it could even cut let alone burn the wood.

 

[ashmatash]

Well, that would definitely explain why the scorching got noticeably worse after I changed out the blade...

Some days....

Thank you guys for sharing with me that clue. LOL. Gonna go hide for a bit and think on my life decisions now.

 

[ashmatash]

Well, on the bright side...
The *initial* scorching was because my blade was bad.
The scorching *after* changing the blade was because I was an idiot.

Amazing what a little thing like CORRECT BLADE ORIENTATION will do for you...

Thanks again!

 

[mkepke]

Don’t sweat it - “there is no dumb question”

Unrelated but what was the previous owner cutting with the saw? Your comment about cleaning out cutting fluid gunk has me curious.

-Mark

 

[ashmatash]

Previous owner was a machinist, so I think it was cutting fluid residue...
The table top, blade guide and components below the table were completely covered in a thick black greasy substance that reminded me of the cutting fluid I use when drilling steel or iron on my drill press.
Had to break everything thing down and scrub it with Krudcutter to get the parts clean. Replaced the tires, the thrust bearings and added a fence... and then I put the saw blade on backwards as proof of my ultimate cleverness.

 

[Berta]

It’s an easy mistake to make.

 

[Roy G]

I remember the first band saw blade I got. When I opened it out I noticed the teeth were on the wrong side of the blade. I was about to take it back and complain when the old light bulb went on over my head and I flipped the blade inside out. Voila the problem was solved.

Roy G

 

[Henry W]

It’s an easy mistake to make.

And some of us know firsthand how easy it is to make that mistake - not that I would ever admit to that publicly, not me ... never admit it and any potential evidence would now be burnt in the firepit - so no, never happened at my place!

 

[Tom from Clayton]

Reminds me of when I worked at a breakfast cereal company and bought a couple of work shirts at the company store. Got them home and the pockets were on the inside of the shirt. Took them back and they explained amidst the snickers that the pockets are inside so stuff doesn't fall into the boxes of cereal. If you don't know you don't know.

 

[Mike Davis]

Previous owner was a machinist, so I think it was cutting fluid residue...
The table top, blade guide and components below the table were completely covered in a thick black greasy substance that reminded me of the cutting fluid I use when drilling steel or iron on my drill press.
Had to break everything thing down and scrub it with Krudcutter to get the parts clean. Replaced the tires, the thrust bearings and added a fence... and then I put the saw blade on backwards as proof of my ultimate cleverness.

I wonder if he was also a hunter. Sounds like he was using it for butchering. Any metal dust in the mix?

 

[bob vaughan]

Or cutting aluminum, but that should have been obvious from the chips.

Years back I was given a band saw that was used for cutting meat. What a mess.

 

[cyclopentadiene]

The most fun is folding a band saw blade without poking yourself. I have to watch a video every time to fold them correctly I get lazy and just leave them fully open after changing sizes. Eventually I get irritated in that side of the shop and fold several at the same time.

 

[Berta]

I can fold a bandsaw blade. UNFOLDING….I just toss it away from me and let it do its thing. It understands to unfold without biting me.

 

[ErinJ]

Blade looks very dull and installed backwards as well. If you are not getting anything after the fix, try getting a different blade. Also, are you open to upgrading those guide to a band saw guide upgrade kit?

 

[DSWalker]

No need to go hide for a bit. I'll wager that everyone that has replied to this thread has done something similar. We all do it. I've probably got 3 or 4 of them... or more? Just laugh it off and keep making glitter. The people on this board are here for you.