LumberJocks

Sharpening Bandsaw Blades

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by MrRon posted 01-14-2015 04:11 PM 1186 views 0 times favorited 14 replies Add to Favorites Watch
View MrRon's profile

MrRon

3926 posts in 2704 days


01-14-2015 04:11 PM

Is it worth sharpening bandsaw blades? I have all the tools to sharpen anything that cuts, or would it be just a waste of time considering the cost of a new blade?


14 replies so far

View ElChe's profile

ElChe

630 posts in 797 days


#1 posted 01-14-2015 04:23 PM

I think it is a losing proposition unless you are sharpening something like a spring steel blade. Carbon blades maybe but I think it’s iffy. Any blade with hardened teeth would just ruin your files like a Timberwolf. I’ve tried and failed miserably.

-- Tom - Measure twice cut once. Then measure again. Curse. Fudge.

View DrDirt's profile

DrDirt

4167 posts in 3203 days


#2 posted 01-14-2015 04:34 PM

I lean towards it being a waste.

It usd to be that BC Saw and Tool would sharpen bandsaw blades. However with shipping, a new blade is cheaper.

The ‘resharpened’ blades would leave less of a kerf. so if you got a 1/2 inch blade sharpened, you could not turn as sharp anymore. But this is a positive feature, for smooth resawing and/or cutting tennons on the bandsaw.

-- 'Political correctness is fascism pretending to be manners' ~George Carlin

View johnstoneb's profile

johnstoneb

2143 posts in 1634 days


#3 posted 01-14-2015 04:36 PM

How much does a replacement blade cost? How much does it cost to resharpen the blade? How much is your time worth?

-- Bruce, Boise, ID

View bigblockyeti's profile

bigblockyeti

3667 posts in 1182 days


#4 posted 01-14-2015 04:41 PM

Depends on the cost of a new blade, the tpi and how the length. My bigger bandsaw takes 13’ blades and anything over 4 tpi isn’t worth sharpening. The thicker resaw blades I have are, at 1.3tpi there’s around 120 teeth and the guy that does it for me has a dedicated band blade sharpener that takes around 1 second per tooth once set up. The initial cost due to the steel content also adds to the justification of having this done rather than considering these blades as disposable.

View Loren's profile

Loren

8295 posts in 3109 days


#5 posted 01-14-2015 04:50 PM

I think so. Lower tpi blades can be inverted on the saw
and the gullets round with a moto-tool in a cradle. It
doesn’t take long.

I buy and solder blade coil stock now. Personally I get
sticker shock when I look at band saw blade prices.

View MrRon's profile

MrRon

3926 posts in 2704 days


#6 posted 01-14-2015 05:26 PM

I am retired so time is not much of an issue with me. I use high quality blades (Starrett Woodpecker blades). They cost me around $22 + shipping. I sharpen my own circular saw blades with a professional carbide sharpening machine, but that goes pretty fast. Maybe I’ll try a bandsaw blade and see how well it can be done and how long it takes. I am only considering re-saw blades with 3 or 4 TPI.

View MrUnix's profile

MrUnix

4208 posts in 1660 days


#7 posted 01-14-2015 05:33 PM

Mathias (woodgears.ca) has a page about sharpening BS blades along with a video… might want to check it out.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

View MrRon's profile

MrRon

3926 posts in 2704 days


#8 posted 01-14-2015 05:52 PM

I actually have a machine that sharpens bandsaw blades, but it hasn’t been used in over 20 years and has a lot of rust on it, so I would have to drag it out, clean it up and remember how to set it up. It was really meant to sharpen really large blades as used in a saw mill and not the flame hardened blades that require grinding to sharpen. The video gave me something to think about, but sharpening by hand is pretty imprecise when trying to maintain set and tooth height. It’s getting to look lmpractical.

View Loren's profile

Loren

8295 posts in 3109 days


#9 posted 01-14-2015 05:57 PM

Well, with say a 1/2” 3 tpi blade, it starts to lead a bit
much and burn so you grind the gullets, re-adjust
for lead and work with it for awhile. Sure, the set
can get a bit off and you might not want to try to
cut veneers or guitar plates with anything but a
professionally sharpened and set blade, but for everyday
furniture work on the saw the approach works fine.

View Planeman40's profile

Planeman40

805 posts in 2222 days


#10 posted 01-15-2015 03:27 PM

”I think so. Lower tpi blades can be inverted on the saw and the gullets round with a moto-tool in a cradle. It doesn’t take long.”

Loren, that’s the best tip I’ve seen in a long time! Gotta try it. : )

Planeman

-- Always remember: It is a mathematical certainty that half the people in this country are below average in intelligence!

View distrbd's profile

distrbd

2227 posts in 1907 days


#11 posted 01-15-2015 07:42 PM

I have sharpened a few 93.5 long BS blades ,doesn’t take much set up,very easy to do,there’s nothing wrong with spending 10-15 minutes to sharpen a blade,although they don’t cost much new but why have a pile of dull blades when they can be as sharp as new with not much skill/time.

-- Ken from Ontario, Canada

View Surfside's profile

Surfside

3389 posts in 1634 days


#12 posted 01-15-2015 10:16 PM

I resharpened my 2 dull blades for $4.

-- "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 Jim Finn's profile

Jim Finn

2409 posts in 2383 days


#13 posted 01-15-2015 11:03 PM

I buy 105” x 1/2” carbide re-saw blades for $25 that last me a loooong time so I vote ….no it does not pay to sharpen them.

-- "You may have your PHD but I have my GED and my DD 214"

View gfadvm's profile

gfadvm

14940 posts in 2151 days


#14 posted 01-16-2015 01:55 AM

Woodmizer has a sharpening service where I get all my bandmill blades resharpened (well worth the $7 each) but I think resetting teeth is also very important to prevent drift.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com