1 1/2 WALL MAY NOT BE ENOUGH
Bill Hale / The Wood Spinner
>I thought some of you might like this pic.
The 10% wall thickness does not always work.
Tub cured as I normaly do but these went crazy.
Good turning and be safe
Bill in Casa Grande, AZ.
1 1/2 WALL MAY NOT BE ENOUGH
Posts
Re: 1 1/2 WALL MAY NOT BE ENOUGH
#2Re: 1 1/2 WALL MAY NOT BE ENOUGH
John Lucas
>Bill I have 2 Wysteria bowls that did the same thing. I'm going to handcarve them this summer. I hate to waste wood this pretty.
Re: 1 1/2 WALL MAY NOT BE ENOUGH
#3Re: 1 1/2 WALL MAY NOT BE ENOUGH
Bill Hale / The Wood Spinner
>I already did one other piece of this and it is tough. Eucalyptus gets like stone to work when dry. It is so bad that if you are making firewood it has to be split green. It will stop the motor on any spliter I have ever seen when dry.
Bill
Re: 1 1/2 WALL MAY NOT BE ENOUGH
#4
Re: 1 1/2 WALL MAY NOT BE ENOUGH
Brad Vietje
>Bill,
The 10% rule only works for woods that don't warp a lot. For species like Beech, Apple, Madrone, and evidentally Eucalyptus, this should be interpreted as desired final thickness PLUS 10%, or more. Thus a 10" bowl with a 1/2" final wall thickness might want to be 1.5" plus some extra for clean-up, sanding etc.
Since some species have shrinkage of over 12%, so we need to leave thicker walls for these. When I turn real movers like Beech, I usually turn them to final thickness (well, thin-ness) while green, wet sand to about 320, then hand sand when dry to remove all the fuzzies.
You should be able to power sand these Eucalyptus bowls off-lathe with a 2" or 3" rotary pad, but you'd have to rotate them pretty solwly to do this on the lathe.
Safe spinning,
Brad Vietje
Thetford, VT
