Tuesday, July 10, 2012

Discussing the Centerboard. Again.

I stumbled onto this webpage with a simple description of how to make a foil with a router- no jig required.  And it made a great deal of sense to me.

And then great things started to happen.

Brief summary-  After consulting the plans to figure out the shape of the foil, we made a list of offsets to mark on the blanks.  We basically broke down the centerboard cross section into measured increments, a bit like a topographic map.


After we had all the lines marked, we used the router to cut out each section.


Like this:


Then I used my block plane to smooth it all out.


I'm quite pleased with the cross section- it's starting to look like a foil!  I'm finally heading in the right direction.


I'm a long ways away from being finished with it, but I foresee great things in this centerboard's future.    Plus, it's the last of my 3/4" Okoume, so I had better get this one right.

8 comments:

  1. Sweet move, learned myself a new trick.

    Arthur

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    1. Hey Arthur! Hope it comes in handy. :) Did you get your plans yet?

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    2. No not yet they said in about two more days. I did take your advice and they where kind enough to email me the PDF. So thank you for the suggestion.

      Arthur

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    3. You're most welcome! Hope the build manual tides you over until your plans arrive. :) I had mine printed and I've been packing it around with me religiously. It's starting to look pretty battleworn, and I haven't even reached the epoxy phase yet!

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  2. Very nice start. This is the method I used when shaping SCAMP #1's CB. It was laminated from 2x2" cedar.

    Simeon

    http://smallcraftadvisor.com/message-board2/viewtopic.php?f=3&t=330&p=2015&hilit=cedar#p2015

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    1. Your photos are amazing, Simeon. That is a great looking board, too.

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  3. You center board is coming along nicely. I had made some wings for RC airplanes. They used the same method you did for figuring each cord. On my center board I marked about i/4 out for the front of the board and rounded to that point. A longer taper on the back. Just did it by eye ball. Turned out fine. Use the layers of ply as a guide. I pined the two boards together using wood dowels for alignment. This worked fine. I left them in for glue up. Pete Hull 52

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    1. Thanks for your suggestions, Pete! I like the idea of using dowels for alignment. It's great working with ply, isn't it? I love having the layers as a guide.

      Happy building!

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