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Nose Rocker

 
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Spudnut



Joined: 30 Jan 2011
Posts:
Location: Ventura, Ca

PostPosted: Fri Sep 09, 2011 6:31 pm    Post subject: Nose Rocker Reply with quote

I am making another board right now. It is 50" long by 20" width parallel rails and I am using 1/2" marine plywood. This is going to be for bigger juicier waves.

1) Nose Rocker - Is it necessary? The rest of the board will be flat. If it will help, what is the best way to put it into the board?

2) Finish - I want it to be as maintenance free once it is done. What are best choices?

Thanks in advance, Spudnut
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OG-AZN



Joined: 27 Jul 2009
Posts:
Location: Norcal

PostPosted: Sat Sep 10, 2011 8:50 am    Post subject: Reply with quote

I don't think nose rocker is necessary, although a little doesn't hurt. Most of my boards have been flat. I had good results applying marine epoxy for a finish(no glass). Not cheap, but quick to apply and dry. It does add extra stiffness to the board, but it's very durable.
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rodndtube
Dolphin Glider


Joined: 06 Jan 2004
Posts: 690
Location: USA, MD, Baltimore

PostPosted: Mon Sep 12, 2011 10:13 am    Post subject: Reply with quote

Use of nose rocker is largely a function of whether you ride forward or aft on your board -- which part is planning on the wave. If you ride forward you don't want much rocker or the board will be pushing water.
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rodNDtube
"Prone to ride"
I love my papa li`ili`i
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Poobah
Dolphin Glider


Joined: 09 Jan 2004
Posts: 696
Location: California, San Diego

PostPosted: Mon Sep 12, 2011 11:57 am    Post subject: Reply with quote

Scarf a double thicknes of the same plywood onto the nose, and you'll be able to put a little sanded kick in the nose. You also get a nose handle.



On this cubit board I shaped the inside (thumb side) of the handle before I glued it onto the nose. Some people like to grind a taper on the deck side of their nose blocks. I like an abrupt edge that my thumb can firmly grip.

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boardrider



Joined: 12 Jun 2011
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Location: sennen cove, west cornwall, uk

PostPosted: Wed Sep 14, 2011 2:44 pm    Post subject: Reply with quote

i did an experiment a month or so back, i bent a board with a very abrupt nose then surfed it back to back with a flatter rocker version. the steep nose was horrible, harder to catch waves (i believe it pushes water more) and harder to flex.

finish wise i do all my boards in boiled linseed oil. it gives a lovely natural finish, super easy to apply, you get grip (unlike a varnish board) and with use gets a lovely patina.
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Spudnut



Joined: 30 Jan 2011
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Location: Ventura, Ca

PostPosted: Wed Sep 14, 2011 10:09 pm    Post subject: Reply with quote

Thanks for all of the great replies. I now have it shaped and sanded. I have some polyester resin. Would that be a decent choice?
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geoffreylevens



Joined: 18 Nov 2009
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PostPosted: Thu Sep 15, 2011 9:51 am    Post subject: Reply with quote

IMIO (the second "I" is for ignorant) gradual entry rocker is far superior to abrupt as far as pushing water.

I do believe that the amount (and type stiff vs soft) of flex has large effect on how much rocker helps or hurts the ride...
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Spudnut



Joined: 30 Jan 2011
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Location: Ventura, Ca

PostPosted: Thu Sep 15, 2011 10:30 pm    Post subject: Reply with quote

The board is done! I made it with no nose rocker, dead flat throughout. The more I thought about it, I decided against resin. Woodcraft had tung oil on sale, so I picked up a quart and put on 4 coats at 1:1 with thinner.
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