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Re: Skin-on-Frame: strongest joints
By:Bill Hamm
Date: 1/3/2012, 2:53 am
In Response To: Re: Skin-on-Frame: strongest joints (ancient kayaker)

: Done well a lap joint can be virtually invisible from one side, but
: a scarf joint is looks just as good from either side.

: A lap joint doesn't have to be very long; a butt block 7 to 8 times
: the thickness is enough to provide strength equal to the
: material, and a short flat spot is less likely to show. Location
: is important too: avoid the most sharply curved parts of a
: plank, hide butts under the deck or at a bulkhead, and in many
: small boat designs the planks are often less stressed near the
: stems than midships so the flat spot hardly shows.

Agreed, but still nice smooth curves, specially on the gunwales where everyone notices, are nice, can't get them without a decent scarf. Lots of ways to make them that arn't all that difficult or time consuming. I've got a jig I built for my bandsaw that works fine. With epoxy the joint doesn't even have to fit all that perfectly.

Bill H.

Messages In This Thread

Skin-on-Frame: strongest joints
james Adams -- 1/1/2012, 9:51 pm
Re: Skin-on-Frame: strongest joints
Bill Hamm -- 1/2/2012, 1:52 am
Re: Skin-on-Frame: strongest joints
ancient kayaker -- 1/2/2012, 9:44 pm
Re: Skin-on-Frame: strongest joints
Bill Hamm -- 1/3/2012, 2:53 am
Re: Skin-on-Frame: strongest joints
ancient kayaker -- 1/3/2012, 9:53 am
Re: Skin-on-Frame: strongest joints
Bill Hamm -- 1/8/2012, 3:46 am
Re: Skin-on-Frame: strongest joints
ancient kayaker -- 1/8/2012, 11:26 am
Re: Skin-on-Frame: strongest joints
ancient kayaker -- 1/3/2012, 10:01 am
Re: Skin-on-Frame: strongest joints
Bill Hamm -- 1/8/2012, 3:47 am
Re: Skin-on-Frame: strongest joints
ancient kayaker -- 1/8/2012, 11:28 am
Re: Skin-on-Frame: strongest joints
Bill Hamm -- 1/9/2012, 1:32 am