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Building a plywood/epoxy OK-dinghy

#1 User is offline   enduromx 

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Posted 16 August 2006 - 08:43 PM

I want to build an OK - and from older postings in SA I know that there's a least a couple of desingns (one in Denmark, one in Australia) made so that you can cut all needed plywood parts by water jet / laser or CNC machines

However I'm not able to find any contact information how to buy the needed plans and CAD-files?

Surely someone can give me some contacts?

#2 User is offline   TeamFugu 

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Posted 16 August 2006 - 08:57 PM

I don't know how close this comes but you might be able to contact someone off this site.OK dinghy building manual.

#3 User is offline   Scarecrow 

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Posted 16 August 2006 - 09:44 PM

http://www.damiensmithdesign.com.au/

Realy nice design, the result of an 18 month R&D program (his University thesis). Tell him Tuck sent you.

#4 User is offline   Mudz 

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Posted 16 August 2006 - 09:58 PM

OKDIA

go here and contact the secretary to send to some plans. I am on the OKDIA Tech Committee. There are no CAD files avalible that I know of.
What part of the world ar you in? I might be able to put in in touch with someone. PM me if you want any more info.

#5 User is offline   kanaka 

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Posted 16 August 2006 - 10:34 PM

There are cad files. A fellow in Austrailia will sell them to you with a CD. The bigger issues with the OK are the foils and the carbon rig.

PM me and I'll dig up the information on the aussie. He also sent me a picture of his boat. It's spectacular. I'll fwd it to you.

The OK is neat becasue it is the only international class (that I know of) where a woodie can compete with a modern glass boat.

There are different "hull forms." The differences are in the forward shape and it must all be within fairly strict parameters. A few years ago, an OK committee measured the top three "forms" and published the results. How they differed within the required lines. You should pull that off the OK International site and read it.

#6 User is offline   Scarecrow 

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Posted 16 August 2006 - 11:06 PM

Kanaka,

I think you're talking about Damien (see my link above). The original boat from the design was built in his lounge room. The cut files are incredibly detailed and even include small timber doublers, brackets etc. He can provide you with details on the foils as well.

#7 User is offline   kanaka 

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Posted 17 August 2006 - 01:23 AM

Yep. It was Damien.

#8 User is offline   kanaka 

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Posted 17 August 2006 - 01:24 AM

Yep. It was Damien.

#9 User is offline   kanaka 

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Posted 17 August 2006 - 01:40 AM

Yep. It was Damien.

Beautiful boat.

Enduromax, where are you trying to build your OK?Attached File  AUS_712_1.JPG (210.75K)
Number of downloads: 186

#10 User is offline   enduromx 

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Posted 17 August 2006 - 05:39 AM

Yep, this is exactly what I'm looking for!

We plan to build two boats and we are in Filand (so plenty of time in the winter when there's 4 hour day light & sea is frozen solid for 6 months...)

#11 User is offline   Mudz 

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Posted 17 August 2006 - 07:51 PM

View Postenduromx, on Aug 16 2006, 09:39 PM, said:

Yep, this is exactly what I'm looking for!

We plan to build two boats and we are in Filand (so plenty of time in the winter when there's 4 hour day light & sea is frozen solid for 6 months...)


Also try contacting someone from the Danish OK Association. Someone there was developing a kitset OK.

#12 User is offline   Scarecrow 

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Posted 17 August 2006 - 09:07 PM

If you build Damien's design to the plans it comes out well below minimum weight. Just don't make the mistake he made when first putting it together. He was a little light handed on the glue and glass tapes etc and spent a lot of time when it was first launched chasing leaks.

#13 User is offline   USA-7 

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Posted 19 August 2006 - 10:23 PM

Best luck with that.
Another beautiful, beautiful single hander boat design that I wish would take hold in the States.

#14 User is offline   Mudz 

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Posted 20 August 2006 - 08:07 PM

If anyone in the States was every interested in competing in an OK Worlds there will be charter boats avalible. The OK Association would love to see the class develop there and hopefully one day hold a World Championship there.
Go to Here and contact the Pres or Secretary. They normally do all they can to encourage newbies into the class.

#15 User is offline   USA-7 

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Posted 20 August 2006 - 10:26 PM

Great offer, cheers for that.

Are there commercial builders of these boats?

sorry if this is hijacking...

#16 User is offline   Mudz 

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Posted 21 August 2006 - 12:47 AM

View PostUSA-7, on Aug 20 2006, 02:26 PM, said:

Great offer, cheers for that.

Are there commercial builders of these boats?

sorry if this is hijacking...


yes there are. Cookson in NZ is one of them.
They make all the best boats in the world.

#17 User is offline   USA-7 

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Posted 04 September 2006 - 04:41 PM

Does anyone sell a kit of all the cut out pieces? Kanaka, would you be able to produce some kits?

#18 User is offline   Scarecrow 

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Posted 04 September 2006 - 07:43 PM

If you can find someone local who laser cuts ply all you'll need to do is buy the files off Damien, give them to the timber cutters and get them to give you a call when they are ready.

#19 User is offline   USA-7 

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Posted 05 September 2006 - 03:16 PM

I found a guy here in Boston who can cut the pieces. I am going to do this too.

Anyone in the northeastern US or eastern Canada want to build and sail OKs with me?

#20 User is offline   Captain Bob 

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Posted 06 September 2006 - 09:17 PM

View PostUSA-7, on Sep 5 2006, 03:16 PM, said:

I found a guy here in Boston who can cut the pieces. I am going to do this too.

Anyone in the northeastern US or eastern Canada want to build and sail OKs with me?



Here are some pictures of the assembly of a Danish CNC cut wooden boat. The idea here is to assemble the boat in a jig(no or very little measuring).

http://okjolle.dk/bi.../lars_bo_15.htm

#21 Guest Anarchist MichaelE_*

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Posted 11 September 2006 - 05:20 PM

Damn that class sucks! Enough work to scare people away!

#22 User is offline   TeamFugu 

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Posted 11 September 2006 - 06:50 PM

View PostMichaelE, on Sep 11 2006, 11:20 AM, said:

Damn that class sucks! Enough work to scare people away!

You don't have to build a boat but for some, building the boat is as much a pleasure as it is to sail a boat. Don't knock it until you try it. Builing your own gives you a great apreciation for craft of workmanship and can save you a lot of money.

#23 User is offline   Just Sail 

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Posted 11 September 2006 - 07:22 PM

View PostMichaelE, on Sep 11 2006, 12:20 PM, said:

Damn that class sucks! Enough work to scare people away!



While many me be scared away by all the work for many others it is one of the reasons they are attraced to the class.

#24 User is offline   USA-7 

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Posted 12 September 2006 - 02:37 PM

View PostJust Sail, on Sep 11 2006, 03:22 PM, said:

While many me be scared away by all the work for many others it is one of the reasons they are attraced to the class.

Exactly. Say also that the personal commitment to making the boat look and work beautifully makes it a lifelong endeavour, rather than a summer fling.

#25 User is offline   TeamFugu 

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Posted 12 September 2006 - 02:39 PM

View PostUSA-7, on Sep 12 2006, 08:37 AM, said:

Exactly. Say also that the personal commitment to making the boat look and work beautifully makes it a lifelong endeavour, rather than a summer fling.

The other thing is that if the boats are built well, the last much longer than the molded boats and you have something people will envy for years.

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