bowl turning?!?!?!

[cornucopia]

hello all i found this on another site
http://www.youtube.com/watch?v=7EnERnbrJiU
intresting process

 

[Paul.J]

Great video George.
Love watching clips like that
Just love the variation of bowl design.
Some great skills involved there :roll:
Surprised at the steam drying.Would that be the same as kiln drying :?: :?

 

[miles_hot]

good lord - love the safety aspects - attaching to bowl blank fro instance!

Such a quick process to produce the bowl!

 

[PowerTool]

Quite fascinating - one bowl a minute :shock:

Although all the mechanisation must take the fun out of it,was impressed with the ripsaw system

Andrew

 

[robo hippy]

I think the steaming is a variation of the boiling process, which is used on very difficult woods. Pacific Madrone is one such wood that moves incredibly when drying, and tends to crack a lot. I was told that it breaks down cell walls, to help release the 'entrained' water, which is different from the water flowing through the tree, the stuff that flies off when you are turning a wet log. That is quite some bowl coring system they have.
robo hippy

 

[Bodrighy]

When you steam it perhaps all the sap is driven out and the moisture content is pretty much equal throughout the wood. If this is the case when it is kiln dried it would be all at the same rate thus eliminating a lot of the stress....or is this being simplistic?

Pete

 

[Jenx]

I'd watched that one a few times, -- the opening shots of the bowl led to some eager anticipation the first time... only to be disappointed by the process by which its done.... ( by that , I mean the lack of the skill of a true hand-made item ) it's a 'production process' I guess, which means 'turn 'em out quick', but also leads to a certain 'uniformity' in whats produced.
There's a slight lack of character in the results IMHO

Interesting to see it done though :wink:

 

[robo hippy]

I am not sure about the heat kilns. There is a definate skill to drying different woods. The one problem that people have when learning to kiln dry is that it needs to dry a bit, then equalize, then dry and equalize, till done. If it isn't done correctly, if you rip a 2 inch thick board down the middle, it can spring outwards, cupping out from the center, or the ends peeling back, or twisting. There are ways to dry and releaving stress. The best kiln dried wood I have worked with was done in a vacuum kiln. It cooks at a much lower temp because, in a vacuum, water will boil at a lower temperature, and the vacuum can pull the water out. You rip a board on your table saw, and you get shavings, not dust. Much like air dried woods. I would love to experiment with a vacuum drying chamber for my bowls. Don't have the know how to do it though.
robo hippy