Diving fins


Diving fins
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Daniel
Daniel
Daniel
posted 12 Years Ago HOT
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Posts: 5, Visits: 22
Hi everyone..!

I'm new here on this forum... Also I'm new in composites world...Smile
My idea is to make carbon diving fins in mould with two sides with vacuum infusion. (dim. 20x70cm). In first few trys I used glass fibre and I had some "holes" without resin. Now I know the choice of resin was wrong....
My next try will be with carbon reinforcement and infusion epoxy resin.
From this point I need suggestions about tipe of carbon..(thickness.. UD or TWILL... or combination...) Fin have to be strong and shiny from both sides... Mould is made from plexyglass.

Plesae help...! 
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Daniel
Daniel
Daniel
posted 12 Years Ago HOT
Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)Forum Member (31 reputation)
Group: Forum Members
Posts: 5, Visits: 22
Yes, that' the fin... without rubber part for the feet. 
On the picture is infusion of the epoxy in mould. I have to have both sides shiny, so the plexyglass mould is from both sides. In that case it's impossible to use infusion mesh. Problem with dry spot is caused because thick epoxy resin. I have to change it...

I want to make them from carbon because it's light and strong. Also, I can affect to thrust and the point of flexibility

Al my tests until now are with glass... (because of price in testing phase). Firs layer is 80g then two layers of 400g UD cuted diagonaly, and again 80g.
That was material which I had... just to test if I can make infusion right and if I can get shiny both sides. Only problem is that dry spot. Now I'll change the resin type....

Im not shure about type of carbon which I have to use in final product... First idea is 4 layers... 200g Twill + two layers of 150 UD cuted diagonaly + 200g Twill....

Please advice...!
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Diving fins
Daniel - 12 Years Ago
     Nice to have you here! Do you have some pictures? It could make it a bit easier to help you... Ways...
matthieutje65 - 12 Years Ago
             Hi I have some experience in diving, so I wouldn't make cf fin, I would rather hit maybe one layer...
wojtepanik - 12 Years Ago
                 [quote][b]wojtepanik (11/12/2013)[/b][hr]Hi I have some experience in diving, so I wouldn't make cf...
Daniel - 12 Years Ago
             Here is photo of my last try... You can see the hole without resin...
Daniel - 12 Years Ago
     Unidirectionals will give a flater surface tan a braided cloth if gel coat is not used. If you...
Zorongo - 12 Years Ago
             [quote][b]Zorongo (12/12/2013)[/b][hr]Unidirectionals will give a flater surface tan a braided cloth...
Daniel - 12 Years Ago
     Sorry, but from that picture I have no clue what that is supposed to be? A diving fin, as in the...
baja_patient - 12 Years Ago
             Yes, that' the fin... without rubber part for the feet. On the picture is infusion of the epoxy in...
Daniel - 12 Years Ago
     Hi! I would like to share this great online resource for anyone seeking a dive fins :...
jeremy tom - 11 Years Ago

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