Guys, you mention an Iturra spring. What makes it good? My Wadkin DR36 needs a new tensioning spring as the original is either worn out or was never stiff enough. But I have no idea how to buy springs.?
Can you give me any guidance on a suitable spring purchase for a large cast iron saw from the 1940s. ?
Length?
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ID and OD?
Coil pitch?
Compressibility?
Thanks for your help.?
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On 6 Mar 2021, at 2:16 am, David Kumm <davekumm@...> wrote:
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I put an Iturra spring on my Y20 as well and it is a worthwhile upgrade.? Dave
If you¡¯re interested, I bought and refurbished a Northfield 20 last fall and made a YouTube video series about the project.
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I also contacted Northfield and added both the single roller resaw fence plus the regular double-sided fence. I also added the Iturra heavy spring, as the standard Northfield spring is really wimpy.? I¡¯m able to tension a ?¡± blade to 25000 psi.? The saw MIGHT
be able to handle a 1¡±, but there are some clearance issues with guides and wheel width where I wasn¡¯t sure if it was worth it, and Iturra said the difference between ?¡± and 1¡± isn¡¯t likely to be huge.
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I haven¡¯t done a massive amount of resawing, but it¡¯s working OK. I may still have alignment issues with the single roller resaw fence; I¡¯m having arguably better results with the standard fence as long as my board is short enough that I can control it that
way.
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If condition is good, a decent deal without the feeder and a great one with it.? As a resaw it will be OK but not in the same world as a heavy ACM or Centauro 24" or a NF 27 or32".? It will likely handle a steel blade
but I doubt it will tension a carbide blade if that is what you intend.? The cast iron saws in the 20" range had larger tables and were more of a scroll type saw with occasional resawing.? The 30" saws were built for both and the 36" could resaw most anything
up to 20" wide.? Dave
A 20¡± 1961 northfield bandsaw came up for 2k, is that a fair price? Not sure if the power feeder is included, waiting on a reply. Appears to be in good condition, new tires, 2 hp 3p.?
I will be looking to use this as a resaw at least for now, shopsawn veneers and general resaw
David Luckensmeyer