Primitive Archer
Main Discussion Area => Bows => Topic started by: DC on June 12, 2020, 12:43:57 pm
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For those of you that have used dutchmen to replace knots(Yew in this case) did you concern yourself with the grain direction of the dutchman? Did you just make them round?
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As i am a dutch man i am really starting to wonder what It is haha
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I' don't do repairs or anything less than perfect wood but studying a wood strength chart would give you the best answer. You can usually find the numbers for various woods in each grain configuration. Yew seems pretty homogenous though.
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As i am a dutch man i am really starting to wonder what It is haha
The thumb and the dyke. That may sound wrong.
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When you cut out an imperfection and replace it with a good piece of wood, the good piece is called a dutchman. Something about being better than the rest ;D ;D ;D ;D
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Oh Pat, you are a very naughty boy! :)
As long as the knot is sound I don't bother plugging it. You still need to compensate for it in the bow's layout, especially on the width of the back.
If the knot is loose, I will clean it out, then plug it, with a Dutchman.
I cater the shape of the plug to the shape of the knot. Dowel if possible, otherwise conical taper, with a flattened point. Never drill any deeper than is absolutely necessary.
Use a really good gap filling glue, like a slow setting, rock hard epoxy, or urac etc.
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In Massey's book he recommends the plug be glued in with the grain vertical as in edge grained.
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So the grain would match bow and plug?
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Make an 'end grain' dowel.
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Same term a Boiler Maker uses to patch a tube.
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I have tried several of these plugs and never had one hold up for the long run. They would always split and take the split into the rest of the limb.
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I remember a bow of the month winner that was Dutch Elm with a Dutchman, made by a Dutchman (Leonwood).
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I generally put my plugs in with the growth rings running parallel to the length of the bow, But I don't think it really makes any difference.
Just checked back through my blog and they are actually pretty random! ::)
Del
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I generally put my plugs in with the growth rings running parallel to the length of the bow, But I don't think it really makes any difference.
Just checked back through my blog and they are actually pretty random! ::)
Del
How do you make a dowel with the grain running across it?
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I generally put my plugs in with the growth rings running parallel to the length of the bow, But I don't think it really makes any difference.
Just checked back through my blog and they are actually pretty random! ::)
Del
How do you make a dowel with the grain running across it?
With a plug cutter.
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I was hoping it was with something I had ;D ;D
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I generally put my plugs in with the growth rings running parallel to the length of the bow, But I don't think it really makes any difference.
Just checked back through my blog and they are actually pretty random! ::)
Del
How do you make a dowel with the grain running across it?
You are confusing the grain and the rings... (don't we all?)
The plug is like an arrow shaft... the grain runs along the length... but you can see the rings on the end of the arrow.
Del
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I don't often need to fill a defect, but I do make the grain run lengthwise of the bow. I also make the plug such that it will only fit the opening if the bow is slightly reflexed. That way the plug is already in compression when the bow is unbraced and slightly more compressed than neighboring wood when braced and drawn.