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Thread: Need help with timber elasticity
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16th November 2013, 05:26 PM #1New Member
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Need help with timber elasticity
Hi
I am working on little carving projects and need to find some timber with some good elasticity
I dont need a lot, e.g. 100mm x 10mm x 19mm
The thing I'm struggling with is finding which species have properties like this, I know timbers like spruce would work well but getting them is another story
Looking on the web I found a few sites but they only care about American timber
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16th November 2013 05:26 PM # ADSGoogle Adsense Advertisement
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16th November 2013, 07:30 PM #2
If you mean something that can flex a lot without snapping and will return to its shape karri I believe will do the job. Hope I spelt it right
Dave
The Turning Cowboy
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16th November 2013, 07:54 PM #3New Member
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Yes that is exactly what I mean, I am using it in place of a metal spring
If I am unable to get any karri is there any other species?
Also does anyone know of any speciality timer suppliers in eastern Melbourne?
I am travelling to Perth soon and will try and get some karri there as it is native there
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16th November 2013, 08:10 PM #4
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16th November 2013, 10:13 PM #5
How far does it have to flex? 100mm isn't very long to get much flex in with 10mm timber, it will be a pretty stiff spring I would think!?
You could talk to someone like NCArcher on the forum, he makes bows (archer) and has a good list of springy timbers.
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17th November 2013, 01:05 AM #6Banned
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U
U
You
Ewe
Yew
The one long bows were made from in England!
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17th November 2013, 09:43 AM #7SENIOR MEMBER
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springy timber
Paulownia is used in the manufacture of kite boards. (Snowboards as well I believe.) It is used because it has a 'memory' that fiber glass doesn't. The board is glassed around a 15 mm thick length of Paulownia to ensure the board does not take on a twist because it is constantly being ridden in a certain direction. My experience with the timber is that is will bend well and return to shape. You should be able to buy some from Port Phillip Plantation Shutters in Melbourne.
Whitewood
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17th November 2013, 04:09 PM #8
I trod on a valley board from karri spanning about 3.6 meters. Was not nailed, just sitting on two I beams above a flag roof that was being altered.
My guess is was about 180 x 22 rough sawn. It did not break though sagged a good 400 mm. Couldn't believe it so mate even heavier than me also for on. It sagged more but did not snap.
He reckoned it was because it is a long grain timber. I do t know but I still remember 15 yrs or more later.
Dave
The Turning Cowboy
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23rd November 2013, 08:31 AM #9Senior Member
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- Australia
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Silver Ash
The best wood I know with spring is Silver Ash, Flindersia schottiana. I know that it also can be used for bows. It is also used for bending to make wooden wheels. It has also good lengths with no knots.
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