Blue Juice Twin Fin.....Finished Prototype

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sinker
sinker
WA
255 posts
WA, 255 posts
11 Nov 2007 6:04pm
Hi All,

Recently decided to build my own board, I'm interested in trying my own build technique and am not qualified to try shaping so asked Mike from Blue Juice Boards to do the honors.

After much discussion the shape was agreed upon: a twin fin, Mike started with his standard rockerline, single concave to slight vee shape and standard rails and used an outline I supplied.

I took my outline from a 2001 88l acid and added about 20mm to the max width and shortened it to 2400 by squaring off the nose and pulling the rails in a little. I kept the swallow tail and pinched the rails in to it.

Mike shaped the prototype from blue foam and it was spot on

www.seabreeze.com.au/gallery/gallery.asp?imageid=6969

I added some shaping to the deck in an attempt to create extra stiffness through form.

Glassed the blank with a single skin mixture of e-glass and carbon uni and faired with Q-cell/fumed silica bog and lots of sanding ()

www.seabreeze.com.au/gallery/gallery.asp?imageid=6972
www.seabreeze.com.au/gallery/gallery.asp?imageid=6973

I'm not allowed to sail until next season due to a recent neck injury() so I asked Mike to test the board at Scabs last week.

I added a review thread about the board's performance

www.seabreeze.com.au/forums/topic.asp?TOPIC_ID=32157

anyone who's tried it welcome to add their comments!

So next step is to take a mould off the prototype. (It currently weighs 7.2k with fins and straps.)
Then i can build the real thing properly, should be able to reproduce production board weights when building into a mould.

By the time i've done all that I should be fully recovered!!!

S



decrepit
decrepit
WA
12885 posts
WA, 12885 posts
11 Nov 2007 8:10pm
So when you mould it what do you intend to put in the middle?
Is it going to be hollow?

sinker
sinker
WA
255 posts
WA, 255 posts
11 Nov 2007 9:56pm
Chassis....

It's going to be really cool!!
Juice
Juice
WA
280 posts
WA, 280 posts
11 Nov 2007 11:40pm
COOOOOL!!!

So Sinker later on down the track do you think we can go into production with other shapes as well useing your moulding technique
Crash Landing
Crash Landing
NSW
1173 posts
NSW, 1173 posts
12 Nov 2007 10:28am
Looks good - but I'd rather a rounded nose (I guess it would be better for impact protection).

sinker
sinker
WA
255 posts
WA, 255 posts
12 Nov 2007 9:31am
Hence your avatar presumably?

Juice, yes you could also keep the prototype and make any modifications to that, then take a new mould and so on.
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