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Tempering rig pics
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Topic: Tempering rig pics (Read 3527 times)
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Marc St Louis
Administrator
Member
Posts: 7,877
Keep it flexible
Re: Tempering rig pics
«
Reply #15 on:
November 10, 2011, 09:39:05 pm »
The high heat of a heat gun plasticizes the wood and allows it to be reshaped into a different form. It also seems to harden the wood, possibly through a change in its density by driving the air in the cells out. Steam actually seems to weaken wood a bit.
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Home of heat-treating, Corbeil, On. Canada
Marc@Ironwoodbowyer.com
JW_Halverson
Member
Posts: 11,923
Re: Tempering rig pics
«
Reply #16 on:
November 10, 2011, 10:01:47 pm »
If you were to try dry heat bending or heat tempering green wood it would check and crack on you so bad as to probably ruin any chances of getting a bow from it.
Dry wood, dry heat.
Wet wood, wet heat.
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Guns have triggers. Bicycles have wheels. Trees and bows have wooden limbs.
soy
Member
Posts: 2,897
pm106221
Re: Tempering rig pics
«
Reply #17 on:
November 11, 2011, 02:27:59 am »
Words to live by, jw
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Is this bow making a sickness? or the cure...
PEARL DRUMS
Member
Posts: 14,079
}}}--CK-->
Re: Tempering rig pics
«
Reply #18 on:
November 14, 2011, 09:13:55 am »
J-dub is right on. Green wood will often open big crevices up. I have had it happen over night while it cooled on the form, even though it was perfect when I shut the shop lights off the day before. The piece I am working now is bone dry white ash.
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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.
adb
Member
Posts: 5,339
Re: Tempering rig pics
«
Reply #19 on:
November 14, 2011, 11:53:10 am »
If you have a chace, check out Marc St Louis' article in TB Vol4 on heat treating. It covers everything.
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