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Thinking of sharpening my own band saw blades

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Forum topic by ohtimberwolf posted 209 days ago 640 views 1 time favorited 11 replies Add to Favorites Watch
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ohtimberwolf

256 posts in 984 days


209 days ago

Topic tags/keywords: sharpen band saw blade

and I came across this video on u tube and was quite impressed. Just wondered what you experts think of this and maybe how you do yours. I know many prefer to just buy new and that is what I was thinking, and that is ok, but after seeing this I am re-thinking my opinion…

http://www.youtube.com/watch?v=UygEQ-079Ws

-- Used to be a barn cat, now a lap cat...


11 replies so far

View Loren's profile

Loren

7425 posts in 2280 days


#1 posted 209 days ago

You can do it. I’ve done it by flipping them upside down on the saw
and grinding the gullets with a dremel tool.

If you really want to stretch your blade budget, buy coil stock
and solder up your own. I do it.

-- http://lawoodworking.com

View distrbd's profile

distrbd

1069 posts in 1078 days


#2 posted 209 days ago

I have done it with a Dremel and a cutting /grinding disc but not the gullets just the the tips of the teeth like the youtube video except I removed the blade and sharpened it on the bench ,it’s easier.

http://www.youtube.com/watch?v=-AnDvUqe1Ac

-- Ken from Ontario

View ohtimberwolf's profile

ohtimberwolf

256 posts in 984 days


#3 posted 208 days ago

Loren, Yeah, but you are a master and my feet are just getting wet. Maybe wetter… but I think you have to silver solder those and I don’t have that sort of equipment or knowledge. Thanks for the tip, that sounds like a heck of a good idea. Might even be able to run the saw with the blade and hold a file or fine stone at a safe angle in place on the table and let the saw do the work. Could even make a more even grind that way.

Ken, that would be easier, every response helps.

Larry

-- Used to be a barn cat, now a lap cat...

View wingate_52's profile

wingate_52

219 posts in 1201 days


#4 posted 208 days ago

I used to sharpen and reset the teeth on my school bandsaw blade. We got a few hours more use out of them.

View bigblockyeti's profile

bigblockyeti

1490 posts in 352 days


#5 posted 208 days ago

I’ve thought about this with my resaw blades as they’re expensive and at only 1.3TPI not too many teeth to sharpen and plenty of room between tips to reduce the chance of accidentally hitting one you just sharpened on the side of the wheel. I would think that free handing it wouldn’t give you more than a couple sharpening’s before the depth of the blade started to get a little off. I would think it would work a little better if you sharpened into the set of half the teeth, then flipped the blade and sharpened into the set of the other half.

View DrDirt's profile

DrDirt

2409 posts in 2374 days


#6 posted 208 days ago

I buy my bandsaw blades for 9 dollars from BC Saw.
Our guild bought in bulk, so we got a volume discount.

I couldn’t bring myself to sit and sharpen a 105 inch blade, when I could load a new one for less than 10 bucks.

BC Saw also does resharpening.
Michael Fortune gets blades resharpened, but notes that the sharpened blade has less tooth set – so it cuts a narrower kerf, but doesn’t turn as well.
His 2X resharpened blades are ideal for cutting tennons.

I have not tried getting my own blades resharpened – but the Michaels resharpened ones (I got to try) make smooth straight cuts that need very little cleaning up with a plane.

http://www.bcsaw.com/wp-content/uploads/2010/08/BandsawCatalogue.pdf

-- "If we did all the things we are capable of doing, we would literally astonish ourselves." Edison

View bondogaposis's profile

bondogaposis

2490 posts in 983 days


#7 posted 208 days ago

I’m going to try this, I’ve got a dull wood slicer in the trash can right now. At $30 a pop I’ve got nothing to lose.

-- Bondo Gaposis

View hydro's profile

hydro

208 posts in 383 days


#8 posted 208 days ago

Sharpening bandsaw blades is easy, but a little time consuming. I use a bench grinder with a modified 1/4” thick surface grinding wheel, shaped to the profile of the tooth gullet. Just grind a little off of each tooth until the point comes back. Don’t worry too much about getting the profile perfect as you probably will not be able to tell the difference between the cut of your sharpened blade vs. a new blade. You can do this one or two times per blade depending on how careful you are at keeping the gullets even. The blade will likely fatigue and break before you wear it down sharpening. I used to try re-setting the teeth but that proved to be a waste of time.

If you are interested in making up or repairing blades by silver soldering check my blog here: http://lumberjocks.com/hydro/blog/38722

-- Minnesota Woodworkers Guild, Past President, Lifetime member.

View ohtimberwolf's profile

ohtimberwolf

256 posts in 984 days


#9 posted 208 days ago

Nice post Hydro and very informative. Might try it when I get some time. Right now in the middle of a bathroom redo.

-- Used to be a barn cat, now a lap cat...

View hydro's profile

hydro

208 posts in 383 days


#10 posted 207 days ago

Oh Boy Timberwolf, I am in the bathroom remodel process as well. They are small but sure take a lot of time, effort and money!

-- Minnesota Woodworkers Guild, Past President, Lifetime member.

View ohtimberwolf's profile

ohtimberwolf

256 posts in 984 days


#11 posted 207 days ago

Dittos! I don’t mind most of it except I hate the bathtub/shower install work. Never did like plumbing or setting bath stuff. Need to get it done so I can start sanding the hardwood floors. Yeah…

-- Used to be a barn cat, now a lap cat...

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