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13th July 2017, 08:19 PM #16
The Natural edge weather boards they produce are quater sawn. Here is their web link with a picture
Weatherboards Natural Edge - Radial Timber Sales
I think the rest of their products are cut as larger wedges from the log like the Natural edge weather board , then flipped side ways and the wedges are ripped down to form the other products you can see on their web page so they are back sawn .
Rob
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13th July 2017 08:19 PM # ADSGoogle Adsense Advertisement
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14th July 2017, 08:58 AM #17
They have gone back in history with this type of wood, chair makers have been using riven (radially sawn) wood for centuries. this video gives an idea of how they produce useable quarter sawn wood from timber wedges.
The main difference here is that an old school manual system has been mechanised.
This method of green wood preparation is the reason Windsor chairs in particular are so long lasting and stable. The billets are stress free quarter sawn and very stable as a result.
Also if you are aware of the legal battle over the illegal copying of Australia's Lucas Sawmills machinery by an overseas company you would probably realise why this Australian company is keeping their methods and machinery close to their chest. Patents and copyrights don't seem to matter in some other countries.
Hope this helps,
cheers, Ian"The common law of business balance prohibits paying a little and getting a lot.. it can't be done.
If you deal with the lowest bidder it is well to add something for the risk you run.
And if you do that, you will have enough to pay for something better"
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14th July 2017, 08:52 PM #18Senior Member
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There are a couple of you-tube videos of radial sawing for weatherboards where the log is turned on a lathe-like machine so that it is truly cylindrical and all logs are the same diameter. The log is then cut into weatherboards of consistent size. It certainly looked like there were a lot of shavings around the machine and shavings mean waste. The lathe was driven by a flat belt which means the technology is probably not all that new, at least in the USA where the videos were made.
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