Main Discussion Area > HowTo's and Build-a-longs
Spiral Grain - How much is too much?
Crogacht:
Awesome JW, thanks :D
I'll post a picture of both later on. Sounds like fun haha.
Crogacht:
Photos as promised.
The twist in the black beech is probably about 50 degrees over 2 metres.
Next one show the Black Beech bark. This effect is actually caused by a mildew which grows on the honeydew excreted by the tree. Ants and other insects, native birds etc love it (the honeydew). Also highlights difficulty in identifying the nature of grain.
My kahikatea log, the split actually ran off the edge at about 1.7m, but it was on its way to 180 degrees of twist over 2 metres.
The bark of this one is also very tricky :P
The last two are of my kawaka stave, also called new zealand cedar by the white man. It's actually a pretty nice stave I think, but the wood is relatively weak, about half as strong as radiata pine I believe, but we shall see, it's worth a try.
Only about 15 degrees of twist in the kawaka fortunately and unfortunately.
JW_Halverson:
The kahikatea has beautiful bark, natural camo! But that twist is kinda scary, dude.
With a heat gun, I bet you could make the necessary corrections on the black beech, though.
Crogacht:
Yeah that kahikatea twist is preeetty nasty.
I'll have to look into getting a heat gun. Also need to get a better workbench more suited for this kind of thing.
You'd have to rough it out a little first, right? What's the best way to lay the bow out for a piece of wood like that? Go straight down the middle then try and fix any twist, or try and lay it out a bit more diagonally?
I can tell there's some fun and games to be had in the near future haha
JW_Halverson:
Lay out the bow according to the grain of the wood. Shape the bow to the point that you would be ready to start floor tillering. THEN you start heat treating and removing the twist.
I would love to run over there and bring my heatgun along, if you would spring for a good bottle of Marlborough region sauv' blanc!
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