From: "James Mitchell" <mariner@seanet.com>
To: <baidarka@lists.intelenet.net>
Subject: Re: baidarka Wood problems
Date: Fri, 8 Oct 1999 17:16:12 -0700
Has that really been any problem, wood not "lasting"? I've had no such
probs, but then I am working mostly with cedars. And they seem to really
like saltwater!
----- Original Message -----
From: Dalberg, Tor <Tor.Dalberg@dnv.com>
To: <baidarka@lists.intelenet.net>
Sent: Thursday, October 07, 1999 10:53 PM
Subject: RE: baidarka Wood problems
To make the pine last longer, the Norwegians used material soaked in
its own resin. This was done by just removing the bark one year before
cutting. Then let the resin bleed until the wood was soaked.
Regards / Med hilsen
Tor Dalberg
Det Norske Veritas, Division Nordic Countries
OCT 750, Pipelines, 1322 Høvik
Phone: +47 67 57 91 34
Fax: +47 67 57 99 11
E-mail (work): Tor.Dalberg@dnv.com
E.mail (priv) : tordalb@online.no
www: http://www.dnv.no
-----Original Message-----
From: Dan Miller [SMTP:5lakes@itis.com]
Sent: 8. oktober 1999 00:21
To: baidarka@lists.intelenet.net
Subject: Re: baidarka Wood problems
A scarf joint has a lot of surface area spread over a long (relative)
distance. A finger joint also has a lot of surface area, but it
is concentrated in a small (max. 1 inch or so?) area. I would
expect that to create a hard spot in the region of the finger joint,
wheras a scarf joint generally maintains the same bending properties
as the rest of the batten. John Gardner suggests in at least one
of his books that scarfing is an acceptible way to make longer
battens for lofting, so there must be something to it.
Maybe those experimenting with the finger joints can report
back bending properties.
Cheers,
Dan (who still pops his head out once in a while).
At 01:36 PM 10/7/1999 -0700, you wrote:
>Perhaps because a scarph joint is easier to make with simple tools
than is a
>finger joint? Especially true, when shapers nad routers were far
less
>common than they are today, establishing a firm tradition. And
traditions,
>especially boatbuilding traditions, are slow to change.
>
>
>>Although the finger joint method will work for joining wood into
long
pieces, I
>>believe a scarfed joint is much stronger. I have no empirical
evidence for
>this
>>but have read extensively on the subject. I have seen the scarf
joint
>>recommeded many times by professional boat builders but have never
heard
of the
>>finger joint being recommended when it comes to strength.
>>Jim Mortensen
>>
>>
>>
>Douglas Ingram
>Lorette, Manitoba
>
>
>
--- Daniel Miller - 5lakes@itis.com Dragonfly Canoe Works - Cross Plains, WI http://dragonflycanoe.com "So many boats, so little time..."
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