Author Topic: Anyone ever sinew around knots?  (Read 5557 times)

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Offline DuBois

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Anyone ever sinew around knots?
« on: November 19, 2013, 07:41:25 am »
Have these knots in the back and plan to sinew this bow. Am I wrong to think I could clean the cambium off the back and sinew the bow, skirting around the knots, and following how the wood has grown around them already?
Maybe build it up a little thicker around those areas which are naturally a little higher already?
I'm sure someone has tried this or at least thought about it before.
What you think, and thanks?
Doob

Offline PEARL DRUMS

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Re: Anyone ever sinew around knots?
« Reply #1 on: November 19, 2013, 07:52:28 am »
I would carefully carve the branch stubs out and fill the gorge with TBIII and saw dust. Then sinew. I want my sinew to be flat as a pancake and in total contact with the bow %100. That's my angle, Im sure there are 100 more.
« Last Edit: November 19, 2013, 09:28:18 am by PEARL DRUMS »
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline DuBois

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Re: Anyone ever sinew around knots?
« Reply #2 on: November 19, 2013, 09:23:49 am »
I'm sure there are other angles on this but I trust yours. I'll go that way PD. Thanks man.

blackhawk

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Re: Anyone ever sinew around knots?
« Reply #3 on: November 19, 2013, 09:26:33 am »
My personal preference is if I'm gonna sinew a piece of wood its going to be a good clean straight piece of wood ... after all that work I want the best odds and chances of it becoming a bow....just my opinionated view n two cents....n these days I'd only sinew osage,yew,juniper,or a horn bow....n most times I can still make a great bow without the wasted time of sinew.....that ought to stir the pot some  >:D

Offline PatM

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Re: Anyone ever sinew around knots?
« Reply #4 on: November 19, 2013, 10:04:37 am »
Sinew is for making a great bow better. I think it's a waste of time to use it as "duct tape". When I see the heroic lengths people go to in order to patch bows up and just get them to the point where they still have to cross their fingers before shooting, I have to wonder what the reasoning behind that is.
I do think the selection process for wood could be far more stringent in  most cases. I have seen pictures where someone shows the tree that they have cut down or are about to cut down and there might be three better choices in the picture.
 What is that wood anyway? Looks like Red Cedar. You are also going to have the potential issue of glue not really wanting to stick well to the denser branch stub sections and have sinew basically floating over them and not really bridging the gap.

Offline PEARL DRUMS

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Re: Anyone ever sinew around knots?
« Reply #5 on: November 19, 2013, 10:10:50 am »
So how would you handle the knots Pat? You never answered. You just assumed he was covering up junk wood with "duct tape".
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline PatM

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Re: Anyone ever sinew around knots?
« Reply #6 on: November 19, 2013, 10:21:36 am »
I would draw a careful line around the circumference of the log at each knot and make a straight cut through the log at those points. I would then stack it in a dry area and leave it for about 6 months.
 Then I would go and cut a better piece of wood and use the first log as a heat source to speed dry the second piece.

Offline Blaflair2

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Re: Anyone ever sinew around knots?
« Reply #7 on: November 19, 2013, 12:23:10 pm »
Haha pat that made my laugh. As I was reading it I was like wtf is he talking about...
Nothing ventured nothing gained

Offline PEARL DRUMS

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Re: Anyone ever sinew around knots?
« Reply #8 on: November 19, 2013, 12:36:36 pm »
His question is quite clear and concise. Not sure why folks are so eager to make him look like an idiot. None of us know where those knots are, none of us know his plans, none of us know what wood it is and none of us know what the rest of it looks like. He asked how to sinew with knots in his path.
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline DuBois

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Re: Anyone ever sinew around knots?
« Reply #9 on: November 19, 2013, 12:45:06 pm »
I would draw a careful line around the circumference of the log at each knot and make a straight cut through the log at those points. I would then stack it in a dry area and leave it for about 6 months.
 Then I would go and cut a better piece of wood and use the first log as a heat source to speed dry the second piece.
Pat, this seems like real complex directions for simply stating "make firewood because that is crap wood".
This is ERC and it is roughed out to bow dimensions. It has beautiful purple heartwood and about 1/4" creamy sapwood and if it worked I think it would be an awesome looking and shooting bow at 65".
I have read on here how well sinew and ERC are matched so I don't think it would be just a "duct tape" scenario, although I know I am pushing it to hope for a good bow from ERC with a back like this.
  You are also going to have the potential issue of glue not really wanting to stick well to the denser branch stub sections and have sinew basically floating over them and not really bridging the gap.

I think you missed the point of my initial question about not going over the knots at all, but I think if I take Pearlie's suggestion and go with it, it should be a mute point.

My personal preference is if I'm gonna sinew a piece of wood its going to be a good clean straight piece of wood ... after all that work I want the best odds and chances of it becoming a bow....just my opinionated view n two cents....n these days I'd only sinew osage,yew,juniper,or a horn bow....n most times I can still make a great bow without the wasted time of sinew.....that ought to stir the pot some  >:D
This really does bring up a good point. I don't know exactly why I think I see a bow in a piece of wood and feel I have to try and make it, even though it is probably not the best selection. I guess I am fortunate to be able to experiment a little and try to learn while picking you guys brains at the same time. I am havin a blast so far, even when I fail it doesn't really bother me much. That is not normal for me in most other things. I will probably get tired of messin with sub prime wood and want to just focus on the best pieces after I bust a few more questionable staves  ;)

Offline DuBois

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Re: Anyone ever sinew around knots?
« Reply #10 on: November 19, 2013, 12:46:38 pm »
Haha pat that made my laugh. As I was reading it I was like wtf is he talking about...

You made my laugh too!

Offline PatM

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Re: Anyone ever sinew around knots?
« Reply #11 on: November 19, 2013, 01:20:06 pm »
PD, I was not in the least trying to make him look like an idiot. There is a very good chance that the back of the stave could be thoroughly sinewed and make a fine bow but it just looks like the deck is a bit too stacked with knots to make that really worthwhile.
 Even if the rest of the stave is pristine there seems to be just too many crowded in one area.
 Sorry if my attempt at humor came across as condescending.

blackhawk

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Re: Anyone ever sinew around knots?
« Reply #12 on: November 19, 2013, 01:33:01 pm »
With junipers and yew to be sinewed I like to remove most(if not all if I can)of the sapwood....since your inisisting on going thru with it if it was me I would reduce the sapwood down in a decrowned fashion flattening it further...and in doing so you now have a nice flat smooth back all the way across with no ditches and dips....and don't worry about following a growth ring if your going to sinew back it with 3 layers or more cus the sinew will cover any ring violations...

WHERE ARE THOSE KNOTS LOCATED?

Offline DuBois

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Re: Anyone ever sinew around knots?
« Reply #13 on: November 19, 2013, 01:58:02 pm »
With junipers and yew to be sinewed I like to remove most(if not all if I can)of the sapwood....since your inisisting on going thru with it if it was me I would reduce the sapwood down in a decrowned fashion flattening it further...and in doing so you now have a nice flat smooth back all the way across with no ditches and dips....and don't worry about following a growth ring if your going to sinew back it with 3 layers or more cus the sinew will cover any ring violations...

WHERE ARE THOSE KNOTS LOCATED?


blackhawk

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Re: Anyone ever sinew around knots?
« Reply #14 on: November 19, 2013, 02:05:19 pm »
 :o Sweet Dear Jesus....please do a miracle here..Amen  O:)  :laugh: