Under the pump - Pod pritiskom

As promised (to myself:), today I laminated my bamboo kite board with a few layers of fiberglass. Used bi-ax 200g glass with 45 degrees layer in the middle overlapping the foot pads, two layers under the foot pads and one orthogonally layer for the whole board length. Used 180g (3:1 by volume or 3.5 by weight ), epoxy with the 403 West S. filler.
I was expecting to use much less epoxy however using a filler makes it more complicated to wet out. Will see when I'll glass the bottom with no filler how much epoxy will use.

Decided to use my new vacuum table which is efficient way to get the rocker. The concave is here as well, made with two 1mm balsa veneers and placed underneath. I think it was possible to place 20-30 cm wide fiberglass under at the same time to keep that concave in place. Maybe I will do that next time.

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Kako obecah samome sebi, danas sam lijepio moju bambus dasku sa nekoliko slojeva fiberglasa. Koristio sam dvo-osni 200g fiberglas pod 45 stupnjeva u sredini preklapajuci mjesto za vezove, zatim dva sloja na mjestu za vezove i kompletan sloj po duzini. Utrosio 180g (3:1 epoksi volumno ili 3.5 po tezini), epoksija sa 403 West S. mikro granulama. Mislio sam da cu trebati znatno manje epoksija no koristeci mikro granule dosta je tesko navlaziti tkaninu. Vidjeti cu koliko ce trebati za dno daske bez tih granula.

Odlucih se za novi vakumski stol i efikasnu zakrivljenost. Konkava ispod daske je takodjer tu, na nacin da stavih dva slojeva balsa furnira od 1mm ispod daske. Mislim da sam mogao istovremeno staviti 20-30cm siroki fiberglas ispod daske tako da se zakrivljenost konkave zadrzi, mozda drugi puta i uradim tako.

It will take a few days to cure this super clear epoxy....

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Trebati ce nekoliko dana da se ovaj specijalni super proziran epoksi osusi...