Saw jams

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  • #118559
    tompslattery
    Participant

    Picked up a couple of old saws today a tennon and saw a dovetail saw. Both are sharp but the dovetail saw keeps jamming about 2-3mm into the cut. Tennon saw cuts very well. Both saws are about 12-13 ppi and have been oiled. Any suggestions as to why this is happening?

    #118560
    Dave
    Participant

    Tom, when you say the saw jams in the cut is the saw plate binding which might be caused by not enough set. If that’s not it then there might be an issue with the saw teeth. Uneven filed teeth, too aggressive etc.

    -Canada

    #118561
    tompslattery
    Participant

    Yeah the plate binds. The teeth are in really good condition I don’t know how to tell if they are too aggressive or not. So hopefully I win my eBay bid on a saw set pliers to check to see if it’s the set

    #118571
    Dave
    Participant

    Sounds like it’s the set. the teeth aren’t cutting a kerf wide enough for the thickness of the saw plate. You can try some paraffin wax (canning wax at the supermarket) on the saw plate to see if that helps but you might have to set the teeth a little bit. I keep a stick of paraffin wax at the bench and use it for waxing bench plane bottoms, saws etc. it works great for this. Also Watch Paul’s saw sharpening videos to get an idea of how to set the teeth and how to shape the teeth for a more aggressive cut.

    You can buy saw sets through lee valley or toolsforworkingwood if you are in N.America.

    -Canada

    #118605
    Frank Joseph
    Participant

    Iam having the same problem.. I tryed to set the teeth but the tooth is not bending? I have tryed a number of times holding the tool in diferent maners and even tryed lowering to #6 on the anvel? But the teeth don’t bend out ?
    Frankj

    In South Jersey the good part of New Jersey, USA.

    #118607
    Dave
    Participant

    Frank, you don’t have to bend the teeth too much to get the saw set. Sometimes those saw sets are a bit finicky and you have to do some experimenting with them to get the set to your liking. On those somax saw sets, One important thing to note is that the number on the barrel does not equal the number of tpi for the saw. It’s just a reference point.

    -Canada

    #118609
    Frank Joseph
    Participant

    Iam going to take the set tool apart and check the spring and plunger see if they are set wrong? I don’t know what else to try.
    Frankj

    In South Jersey the good part of New Jersey, USA.

    #118612
    Dave
    Participant

    Frank, I find setting my saws to be difficult as well, it’s more art than anything I think. Sometimes you have just play around with the saw set pliers to get them to work right, I have to really hit just the right spot on the teeth for the pliers to take hold.

    -Canada

    #118613
    Frank Joseph
    Participant

    Ok will try again I have set saws befor but it was 20+ yrs ago. I recall a lot of it but then I used a wrest I may need to make one the set I just bought is the somax I also have a old one from my fathers shop its at least 60+ years old a lot like the one Paul took apart in his vid. I may take it and regrind the plunger. .?
    Frankj

    In South Jersey the good part of New Jersey, USA.

    #118834
    chemical_cake
    Participant

    If you’ve bought a Somax new this might not be useful information, but when I got my first second hand saw set I had a similar problem. Turned out the washer that sits between the knurled locking nut and the body of the set had gone missing at some point, allowing the thread to peek through the centre of the barrel when everything was tightened up. This poked into the saw plate so that the plunger just pivoted the whole plate around this point rather than holding it tight and bending the tooth.

    One little washer and it was just fine, but it took a hell of a lot of time and frustration to work out that I wasn’t just doing it wrong!

    Southampton, UK

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