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Update on 120# yew warbow - I don't like to complain, but...
toomanyknots:
--- Quote from: WillS on January 12, 2014, 09:03:05 am ---
The trouble is, while common sense (and even the most basic bow making experience) says "stiff limb must become thinner to even out" how far do you let it go?
--- End quote ---
As far as the tiller indicates you need to. I can tell you are frustrated with this bow, which anyone would be, especially with the money and time put in. You seem to be thinking about limb thickness too much, the tiller is what matters and determines what thickness the limbs are. Nothing but the tiller at full draw, and actual working tiller when the bow is drawn matters. If the bow looks good at fulldraw, than the braced profile will look fine too, that is my experience. That's the only thing you should be worrying about with this bow or any bow. The tiller is what makes a bow a bow. It sounds to me like your right limb is still too strong, although I can't tell say for sure of course without seeing the tiller. Either way, thank you for sharing this bow. I hope you get it sorted out.
WillS:
Cheers! Massively appreciate ALL the help and comments, it will get finished and it will be a learning curve and there's nothing wrong with that. It's just frustrating but that's what happens! If it was easy everyone would do it ;)
Hopefully some other people can learn from my mistakes on here too.
Del the cat:
Regarding the horn nock... maybe the groove was too close to the lower edge of the nock? Horn has grain like wood and can split if there isn't enough material there?
Just a guess as there is no pic.
As for the rest of it, I wouldn't worry too much about how it looks at brace. I've had Robert Hardy tell me one of my bows was upside down, just because I had a naturally deflexed limb as the lower.
Short of sticking strain gauges along each limb and wiring 'em all to a chart recorder, it's down to eye and feel.
Don't be too hard on yourself.
Yesterday at the club 'Taxi Dave' came up to me with 'Dogleg' one of the Yew bows seen on the TV... it had just exploded on him! It was always a tad experimental, and had a belly patch so we weren't too surprized (he needed clean underwear tho' ;) ). It was made in April last year.
I'll lend him the 100# Elm warbow to see how he gets on with that. Much better making bows for mates than customers who live miles away and don't appreciate the vaguaries of wood.
Del
toomanyknots:
--- Quote from: Del the cat on January 12, 2014, 12:27:42 pm ---
Don't be too hard on yourself.
--- End quote ---
+ 1! I think when we put our heart and sole into something, and it doesn't come out absolutely perfect, it can be devastating, for me it is usually, especially with bows and all the time and work that goes into just one. Sometimes a bow will not turn out like I had expected, or something will be wrong or quirky with it, so I will throw it in some corner of my house somewhere where I don't have to look at it. It will just eat at me if I think about it, so I won't. Sometimes I will remember it after a couple months, go look at it, and realize it is a really nice bow, and I won't even notice whatever was irking me about it, :).
meanewood:
The issue with a re-flexed or deflexed section of a limb is something I have little experience with, so I'm keen to found out what the 'old hands' think.
OK. if you have a section of deflex in a limb, it is already bent in the direction that the rest of the stave is heading. but with no stress imparted to it.
If you then tiller according to an even looking bend, this section ends up being un touched while the rest of the stave gets reduced to catch up.
Logic tells you, this part is less stressed than the rest and isn't the idea to share the stresses evenly? With a straight stave this is gauged by looking at the bend for evenness and we all seem to focus on the beautiful 'look' of an even looking full draw, but beauty is not the primary goal, especially when dealing with heavy bows that are pushing the stave to it's limits!
I've got 2 Elm staves ready to go with these issues and I hope to get 130-140lbs out of them, so I'm keen to learn from Wills experiences.
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