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Broken record bow . Literally ! and a want a be.

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bjrogg:
Ah that beautiful yet somewhat frustrating wood.

Will be interesting to see what the engineering team finds out.

Looking on my phone it almost looks like the older one has a very slight amount of reflex mid limb bottom limb and the new one a very slight deflex there. That could just be illusion though.

For some reason they both look the same length except for the picture of the front  profile. That picture the new one looks like its top limb is a couple inches shorter.

Must be a illusion

Bjrogg

Selfbowman:
New can of worms!  Can you change the elastic property’s of wood??? My wood is to dry I think. Below 6%. Will olive oil, motor oil,  water , true oil or any thing change the elasticity?? If so can we spray lacquer on the belly and oil the back changing the neutral plane. It does when we add sinew or bamboo.

bentstick54:
I don’t know about adding any type of oil to change the elasticity, but I would thinking any different amount of heat applied for corrections, adding in recurves etc., or heat treating from 1 stave/bow could make a difference from 1 bow to another by changing the cells of the wood by different amounts. Maybe?

Selfbowman:
So I whats the best way to rehydrate the wood?

bjrogg:

--- Quote from: Selfbowman on March 15, 2023, 11:08:13 am ---So I whats the best way to rehydrate the wood?

--- End quote ---

I’m thinking slowly. I don’t have anything to measure moisture. I usually just let mine sit for about three days after heat treatment or corrections.

I doubt my shop’s humidity is as low as yours though. I have in floor geo thermal. It seems to be a good climate for them though.

I’m sure moisture affects our woods. Not sure if it’s elasticity or compression, but from my experience here. When it gets really wet and humid I might notice a slight decrease in performance.

The dryer the more performance, but like those race cars everything has to be right or they go boom.

Bjrogg

PS I’m convinced that a really good heat treatment changes compression characteristics. Maybe not in all wood varieties but certainly some

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