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Materials for making Foils
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hollandsd View Drop Down
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    Posted: 23 Jun 09 at 1:32pm

I am looking for a material (wooden) to produce a set of foils with.

Something like western red cedar would be what i am after but havent been able to find anywhere that does it, can anyone help?

 

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Merlinboy View Drop Down
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Posts: 3169 		Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 09 at 1:36pm

Dan, Try Robbins timber yard:

http://www.robbins.co.uk/
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Posts: 3958 		Post Options Post Options   Quote winging it Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 09 at 3:12pm
I was going to post exactly that.  Robbins are really helpful Dan, but check if there's anything else you want from there too (paint, varnish etc) so you can combine postage costs.
the same, but different...

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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 09 at 3:36pm
You can by cedar from most timber merchants who do outdoor materials: Robbins might well do more convenient sizes and better wuality of course. For a board you should buy strips and build the blank up from pieces with grain running in different directions. A board made from a single solid piece may very well warp, and not necessarily immediately...
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hollandsd View Drop Down
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Posts: 853 		Post Options Post Options   Quote hollandsd Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 09 at 3:40pm

I was planning on using somehting like Western red cedar in strips of 25x38x1100mm and resin them together with clamps and then coat them in a sheet of glass with west epoxy to make them strong, was going to produce the Daggerboard as a NACA 0010 shape and the rudder with a NACA 0015 shape, does this sound about right, i was then going to place a template on the top and use a router to cut the rough shape and then plane\sand the rest to perfection?


What do you think?


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JimC View Drop Down
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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 09 at 4:11pm
Originally posted by hollandsd

What do you think?

http://www.sailingsource.com/cherub/test/doku.php/tech/foils

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G.R.F. View Drop Down
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Posts: 4028 		Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 09 at 8:39pm
Don't want to start another thread..

But want to make a foil, temporary, then maybe build another, before I
committ to a given shape/design.

Want a quick and easy method to build one.

Thinking of just blasting away at 25 mil marine ply with a belt sander.


Any other suggestions?
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Merlinboy View Drop Down
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Posts: 3169 		Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 09 at 10:00pm
Follow Jims Guide above Grumpf, Plywood foils tend to break! 
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JimC View Drop Down
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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 09 at 10:24pm
Originally posted by G.R.F.

Thinking of just blasting away at 25 mil marine ply with a belt sander.

Can be done, but suprisingly difficult to get a decent section, and not the strongest. I've created a usable quickish foil like that, with some added carbon after it broke, but it would be unlikely to greatly improve on Messrs Toppers originals...
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G.R.F. View Drop Down
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Posts: 4028 		Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 09 at 10:50pm
Initially I just want to make the biggest foil I can cram in the slot with it still fully
retracted.

We used to frig about with ply templates in the Div2 days doing exactly this, given
we had the same constraints.

And I can assure you even a chimp with a beltsander could improve on Messrs
Toppers originals..

I'll have to glass something down the middle so it doesn't snap mid capsize
recovery mind..
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