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Another Saw Question

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Another Saw Question

#1

Another Saw Question

Patrick Gibbons, Houston, Tx

>Seeing the saws made by Sandor of Bear, DE got me to thinking about the construction of handsaws. I believe this question has been touched on in the past but here goes anyway. Is there really any advantage of milling a notch in the back of a saw rather than folding the metal over in a sandwich as was done previously? The major saw makers had access to mills and could have built this way. It would seem that milling uses less material. Granted, American makers used blued spring steel for the backs rather than brass which I would assume is more cost effective. My assumptions would be that a heavier back is better in most cases and a folded back is actually a structurally stronger arrangement. A milled back looks neater and, if one has a mill, much easier to make than using a brake.

Re: Another Saw Question

#2

Re: Another Saw Question

Joe Rogers, Northern Virginia

>"It would seem that milling uses less material". I agree with your suppositions save this one. If the strips are jigged up properly the waste will be less with a folded back. The milling swarf is all waste.JR

Re: Another Saw Question

#3

Re: Another Saw Question

ThomD

>Leaving aside practical issues like which method produces the best saw, the milling approach allows shapes to be used that would be impractical in a folded back. Much more massive sides, and unlimited material above the slot. This allow a lot of weight to be easily placed over the blade. The milled bar should be stronger since the material was not stressed during manufacture, any alloy can be used without reference to maleability, and any practical weight can be employed. Milled operations can be undertaken to very tight tolerances.

Re: Another Saw Question

#4

Re: Another Saw Question

David Charters (Durham, NC)

>I have a few saws made by Vladimir Spehar, and he epoxies the brass back to the sides of the blade instead on milling or folding. I was concerned at first that this would not be as rigid a guard against bowing as milling or folding, as milling and folding provides for somewhat of an I-beam effect, but it is not an issue at all. Talk about a great sawmaker, and a great guy, unfortunately he is not making saws any more, for now at least. It seems he has one of those dern time consuming things, what do they call them? oh yeah, a family! If you're out there Vlad, thanks for the great saws!

Re: Another Saw Question

#5

Re: Another Saw Question

ThomD

>About the only thing you can say bad about epoxy is that it makes too many things too easy! (See my recent bench dovetail thread.) That is probably the kind of thing I would do unless there was a simpler dodge like heating the milled spine and having it shrink back on the blade, which sounds too good to be true.

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