Grinding a saw blade

Discussion in 'Saw Makers Forum' started by fredd3039, Oct 31, 2013.

  1. fredd3039

    fredd3039 New Member

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    I have seen it on some of the how to's that portions of a saw should be taper ground. Does anyone have any info on how this is done????? Or could you point me in the proper direction?
     
  2. ray

    ray Administrator Staff Member

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    652
  3. fredd3039

    fredd3039 New Member

    Messages:
    4
    Tapering the blade

    Thanks for the info. I was looking for a tutorial on taper grinding it. I understand the concept but what techniques and how the process is done is what I am really after. I have a surface grinder but I am curios as to how they are grinding on it.
     
  4. ray

    ray Administrator Staff Member

    Messages:
    652
    Hi Fred,

    I'm travelling a similar path, I've got a surface grinder but have never ground any saw plate, I guess it's about time to give it a try.

    Here's japansese Nakaya saw blade grinder.
    http://www.nakaya-saw.com/en/machine_taper.htm


    I did find a picture of the surface grinder that flinn garlick use to taper grind their hand saws, but it doesn't really tell me much, other than that it's a very wide wheel?

    I'll let you know how the grinding goes.

    Regards
    Ray

    PS that picture is from facebook https://www.facebook.com/WorkshopHeaven/photos_stream
     

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    Last edited: Nov 2, 2013
  5. pmcgee

    pmcgee Most Valued Member

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    Old school grinding was on the BIG grindstones ... with the blank held in a wooden 'sabot' for want of a better word.

    [​IMG]
    "Disston uses large stone wheels to taper grind there saws. When the stones became worn down they were used to build bulk heads on the Delaware river."
    http://positiverake.com/?m=201207

    There is a picture from the Hawley Collection http://www.hawleytoolcollection.com/index.php?sheffield-tool=audio-visual

    [​IMG]

    It is for knives ... but I'm sure I have seen the same thing happening with saws ... half an idea it was about the Disston works. :confused:

    The japanese are still doing it ... for knives at least ...

    http://www.youtube.com/watch?v=RKx4ZaRCsKc (1min)

    http://www.youtube.com/watch?v=aU6u80Hyw5Y (1min)

    http://www.youtube.com/watch?v=K0BtDfJCNL8 (9min)
     
  6. pmcgee

    pmcgee Most Valued Member

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    184