Re: Northfield 32" Bandsaw
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Dave that makes good sense.? Woodmizer tension there saw I¡¯d say average of 3 to 5 thousand pounds. Designing and building for 50 years
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On Mar 23, 2021, at 11:33 AM, David Kumm <davekumm@...> wrote:
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The bimetal Wood mizer, Woodslicer, etc, blades run at lower tension so the wider band compensates for that.? Less twist until it dulls.? Dave
I always thought it was because the wider the blade the less flex. Think of a 2 foot wide blade on a 2 foot wheel.?
But I could be wrong, waiting to hear.
Bull B¨¦langer?
Mac, nobody has been able to explain why a wider blade is better for resawing.? Why the 1.5¡± instead of 1.25¡± or 1¡± ?
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Joe ,
I run 1.5¡± woodmizer blades on my 36¡± oliver with Centauro power feed. They make to spec.
Bi mental I think and about 50.00 ea or there abouts . Woodmiser sharpens for maybe 15 or 20 bucks. Blades are good for 3 to 5 sharpening. I am going to be resawing 20¡¯ clear quarter sawn Douglas Fir 2x6 in a week or two for paneling.
mac,,,
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martin/campshure/co/llc
mac campshure
7412 elmwood ave.
middleton, wi 53562-3106
608-332-2330?cell
Designing and building for 50 years
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FWIW, I have sawed 1/16¡± thick veneer on my LT16SEC with Laguna 1¡± resaw king. It was 2x12 Cypress and I just did it to check the resaw king blade. I was blown away with uniformity, maybe I am easily amused. I am sure my bandsaw is no
where close to suggested tension.
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Blade breakage may be a point.? The only time I broke a big blade was when it was rubbing a lot on the ceramic rear rub disk with Laguna guides.
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Joe, I can't speak to the larger blade.? The tension arguments go on forever.? My experience is not that different than yours although I see an improvement- slight but still an improvement -
with 25K vs lower.? Mainly when using the full height of the resaw and also to keep the blade from moving into the rear bearing.? I try to keep the blade from heating up from rubbing the bearing.? I don't have any scientific evidence, I just know I haven't
broken any blades at 25K and I broke Trimaster blades at lower tension.? Dave
I spoke with people at both Tannewitz and Northfield on these saws.? Interestingly both unprompted offered that the internet
groups obsession with 25,000 psi was flat out wrong.? The Northfield guy said that¡¯s a spec for horizontal steel cutting bandsaws and irrelevant for wood saws.? I being an engineer have a Starrett Bandsaw tension gauge so I¡¯ve been tensioning with that for
years.? With my Felder FB540 I can¡¯t get the 1¡± carbide blade over about 20,000 psi.? that said, it cuts perfectly and it always has.? I played with it at 15,000 and 20,000 and I notice no difference.? Having been at this for 40 years I never knew about tension
gauges and always tensioned until the blade was ¡°just taut enough¡±.? That always worked unless the blade was dull or you feed the stock too fast.?
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Is there a big benefit of a 1 ?¡± blade over a 1¡± blade over a ?¡± blade for sawing veneers?
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What you are describing matches what I have been told by others who have compared NF with Tanny or Oliver.? The tension spring and mechanism might have more to do with
which to use for resawing than the castings but only using each will tell the true story.? I would avoid the 1.25" Carbide blade on either.? The .035" band on the 3/4 or 1" will be easier to tension than the .042 on the 1 1/4.? My Olivers tension the 1" but
I have no experience with the thicker band.? Dave
Also, the owner I bought from purchased used in 2006. He restored it including having Northfield true and balance the wheels and put on new tires.? New pads on the carter guides, etc.? Owner never put it in service
and it sat on a pallet unused since 2006.? Fresh paint too.? Should just needs power.
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