Diving fins


Author
Message
Daniel
Daniel
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
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...! 
Tags
Replies
Zorongo
Zorongo
Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)Supreme Being (276 reputation)
Group: Forum Members
Posts: 40, Visits: 330
Unidirectionals will give a flater surface tan a braided cloth if gel coat is not used.




If you use two unis, you may change orientation in order to control stiffness.

I mean: from 0º most stiff, +/- 60º, +/- 45. or whatever intermediate you need in order to reach a comfortable fin...

As Wotjepanik mentioned, a fin too stiff will be a mess for the diver.




Cheers !
Daniel
Daniel
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
Zorongo (12/12/2013)
Unidirectionals will give a flater surface tan a braided cloth if gel coat is not used.




If you use two unis, you may change orientation in order to control stiffness.

I mean: from 0º most stiff, +/- 60º, +/- 45. or whatever intermediate you need in order to reach a comfortable fin...

As Wotjepanik mentioned, a fin too stiff will be a mess for the diver.




Cheers !


I tryed with UD. Position is down the fin but at the and I cut it on 45 degrees... That help that the fin is in 1/3 soft and in 2/3 hard... Not too hard...
GO

Merge Selected

Merge into selected topic...



Merge into merge target...



Merge into a specific topic ID...





Similar Topics

Reading This Topic

Explore
Messages
Mentions
Search