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  #1  
Old 11-28-2009, 03:12 AM
stonedpirate stonedpirate is offline
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Could you build a boat like this?

Hello,

I dont have a clue about wood and was wondering if the following is a valid building technique.

You know how you have the keel then put on some ribs then fill in the rest with planks. What if you just made heaps of ribs and screwed them together?

Sorry, not sure how to explain it.

Imagine having a finished yacht, then cutting it into strips like a CAT scan.

\.................................................../
.\................................................./
..\.............................................../
...\............................................./
....\___________________________/
......|..|..|..|..|..|..|..|..|..|..|..|..|

Each one of thos "|" is a rib screwed onto the one next to it.

So you could make each rib slightly smaller or bigger than the next one and when they are all screwed together, it would look blocky then you could sand it back smooth.

lol, i'm not sure how else to explain it.

Thanks to anyone that took the time to try understand that

Cheers
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  #2  
Old 11-28-2009, 03:40 AM
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Quote:
So you could make each rib slightly smaller or bigger than the next one and when they are all screwed together, it would look blocky then you could sand it back smooth.

Sure ...could be done.

If you built in wood ,the sand paper would cost more than the boat though.....

and you would never want to sand ANYTHING again before you were half way done .....

The real question should perhaps be : Why ?

Slow , hard way to build a boat.

Much better ways being used.....

Your original question : Is it a valid building technique ?

No.
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  #3  
Old 11-28-2009, 03:54 AM
masalai masalai is offline
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Why?

What advantage is there?

Where

When

How big

Are you a mad-inventor techie?

Are you familiar with laser-polymer-hardening-techniques?

Have you access to significant computing power and associated technology?
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Old 11-28-2009, 03:58 AM
stonedpirate stonedpirate is offline
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Quote:
]The real question should perhaps be : Why ?
Because the boat is only 8 foot so it wouldnt need many ribs.

And figured that it would be stronger because the ribs a thicker, dont have to use ply wood or steam to get a curved shape because you can cut the ribs curved from flat wood and it would be solid as a tank.

My only problem with it is that i dont know much about wood and was wondering if the individual ribs would absorb water and it would all buckle and leak.

Quote:
the sand paper would cost more than the boat though.....
Maybe, but you could use a power snader and make the ribs so they arent that much bigger or smaller than the next.

Is there any substance you could apply to the finished hull on the outside to avoid sanding and bring it out smooth?

Like tar or something, put it on think and smooth and you wouldnt see the knotches from each rib.

Man i suck at dscribing things

Need a woodworking vocabulary
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  #5  
Old 11-28-2009, 04:08 AM
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The real problem with your method lies in the directional strength. Can you quess which way it's worse?
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  #6  
Old 11-28-2009, 04:17 AM
stonedpirate stonedpirate is offline
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No, not sure what you mean.

I am assuming the grain of the wood would make it weak from the sides.

Just thought a thick rib made of oak would be stronger than ply between ribs.
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Old 11-28-2009, 04:18 AM
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Teddy answered the strength issue.
You will be well advised to believe him.

Power planer can only be used on flat or convex surfaces .
What shape boat ?

If its only 8 ft do yourself a favour and build Stitch and Glue.
Fast , easy , cheap , good.
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Old 11-28-2009, 04:22 AM
stonedpirate stonedpirate is offline
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Stitch and glue is good for rivers and estuaries, I need the most solid and strongest bluewater 8 foot wooden hull in existence
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Old 11-28-2009, 04:22 AM
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How many boats have you seen built this way ( in any size ).
That should answer the " why " question.
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Old 11-28-2009, 04:24 AM
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Are you kidding?

S&G ....laminate another layer if you must ....
You are kidding us aren`t you ?

S& G is good for anywhere.
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  #11  
Old 11-28-2009, 04:26 AM
stonedpirate stonedpirate is offline
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Quote:
How many boats have you seen built this way ( in any size ).
That should answer the " why " question.
I know nothing about wood or boat building so thought that it may have been a valid technique.

When i seen the keel and rib frames, my first thought was why not fill the gaps between ribs with more ribs so thought it might be doable.

[quote]You are kidding us aren`t you?[quote]

About what?
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  #12  
Old 11-28-2009, 04:43 AM
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Quote:
Originally Posted by stonedpirate View Post
why not fill the gaps between ribs with more ribs so thought it might be doable.
Doable, yes but with the planking you omit gives the longitudinal strength. To get as much longitudunal strengt with this "ribs only" method you need smth like three to five times more thickness for you hull..
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  #13  
Old 11-28-2009, 04:45 AM
stonedpirate stonedpirate is offline
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Ahhh, i see.

Thanks for explaining that to me
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  #14  
Old 11-28-2009, 04:56 AM
stonedpirate stonedpirate is offline
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I want to build something like this and as tough as possible:

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  #15  
Old 11-28-2009, 04:57 AM
stonedpirate stonedpirate is offline
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But round with a full keel like a traditional yacht in minature.
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