My friend break his last board after 5 years of good use
Time to build a new one
Hotwire blank in 1.5# blank and insert carbon springer top and bottom
Cut outline
How are you making that carbon springer?
I like the plan shape. Is it the same as the broken board? It’s difficult to tell, but the new one looks like the nose is pulled in a little bit.
Exact ! Nose is slightly pull in, more like a midlength nose than a wombat nose. New one is 3/4 inch wider at center, keep same tail. Same rocker and foil. This “old” guy only surf our hollow fast beachbreack (often a fucking closeout spot, add hard local and you know way it’s not over crowded). So need quick paddle efficiency without too much lenght, wave entry side way and go in the trim line, this will be a double concave quad.
I route a groove, laminate in UD (here 10oz carbon) then cap with eps slightly narrower. After shape i fill remaining thin grooves with a reinforced epoxy mastic sealer, connected UD to main skin. It’s an in core rib.
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Fast and Quick!! Can you give me info on the stringer again please? I think I would like to try that on a board. So it’s Unidirectional Carbon ?? Foam??
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I cut a groove, laminate in UD (here 10oz carbon 1inch wide) then cap with eps slightly narrower than groove. After shape i fill remaining thin grooves with a reinforced epoxy mastic sealer, connected UD to main skin. It’s an in core rib. I do it top and bottom, both are connected at each end of board.
Have to ask, what is epoxy mastic sealer. Not familiar with these terms.
From google traduction: “mastic=putty, both terms are used in english” in french it’s mastic.
I assume you make your own?
Ingredients?
Consistency?
With resin between 20 and 25°C
Slurry : 1V resin mix + 1V microsphere +1/2V cabosil. It’s a fluid mix, i use for seal foam. I use it also for cheater coat fresh lam. It’s a way to strenghened/protected surface without adding too much weight. Still easy to sand prep before recoat.
Putty: 1V resin + 2V micro + 1V cabosil. It’s a creamy paste, i use for seal porous material just before lam. I use for fairing too.
Strenghened: 1V slurry + 1V flox. Gluing putty for set plugs and filleting. Strong and hard.
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Shape is done
Bottom is double concave from entry to tail with quad setup.
Thanks to wide flatness and thickness under the chest the board paddle fast in the wave, then the double thin and wide tail (straight oultline) with quad allow to go high and fast in the trimline. Board have a strong lift back so help entry in curvy wave without catapulte effect and allow to cut bottom turn if needed. This board is the “big board” for the hollow fast beachbreack where my mate surf, where it’s impossible to use a minimal that he should surf in “classic” beachbreack.
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Not hurry for this one… today job on the deck, 4oz warp+ bx 7oz+ 4oz warp+ cork. This will be an expose cork deck.
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Looks great!!!
Hi Lemat, could you share your quad fin placement measurements or a ballpark for setting off the tail & rail?
I build a 6’4 that is supposed to be somewhat of a splitkeel design. I will use mckee placements from the tail but still unsure how far to let the rear fins go in from the rail.
Is it 1,75 inch? Thats what I was thinking. Fronts will be 1,25.
SI unit, millimeter, back of fins : rear 130 from tail, 45 from edge, no toe-in, cant in fins (future). Front 280 from tail, 30 from edge, 0.7 toe in, cant in fins.
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