Forums > Wing Foiling General

Homemade pump/wake foilboard

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Created by oskarhhh > 9 months ago, 12 Apr 2022
oskarhhh
109 posts
12 Apr 2022 5:44AM
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110*47,5 2,3kg

First try to build a pumpfoil board, I hope I made it strong enough. Three extra layers of cloth on deck and bottom to give extra strength from the boxes, vacuum bagged.



mcrt
643 posts
12 Apr 2022 6:19AM
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That looks great!.
I am working on a dockstart board, made with bits and pieces i had around.Very simple design,hope i do not botch up the lam too much.








oskarhhh
109 posts
12 Apr 2022 6:48AM
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Thanks, I was thinking about doing something similar to your design with the wooden stringers but ended up with extra cloth instead we'll see if it holds up. I made the same type of wooden boxes without the spacing What's the dimensions? Looks great!!

mcrt
643 posts
12 Apr 2022 10:46AM
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It is very tiny, 95x42x4 cm.Only for dockstart,should be enough.It is my first "board" too, a full wingboard next :)
What layup did you use,top&bottom?.

oskarhhh
109 posts
12 Apr 2022 1:13PM
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Ok, used only fiberglass and epoxy. On one side, 3 patches from the back of the box starting with the smallest closest to the foam about 15 cm past the box and 2 cm wider the next two layers I increased the length buy 15 cm and width by 2cm on each piece. to distribute the load 2 full layers of 5,6 oz cloth . Same layout top and bottom.

NicoDC
222 posts
12 Apr 2022 1:58PM
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Nicely finished!
that's the hardest part of building a board.

how did you do it? Epoxy (with micro balloons) filling, sanding and epoxy coat?
i do it like that but want to try something different as it takes a lot of time and sanding epoxy is so hard.
i've got polyester filler for the board i'm about to finish, should be quicker and easier but could melt the eps core.

mcrt
643 posts
12 Apr 2022 6:46PM
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Select to expand quote
oskarhhh said..
Ok, used only fiberglass and epoxy. On one side, 3 patches from the back of the box starting with the smallest closest to the foam about 15 cm past the box and 2 cm wider the next two layers I increased the length buy 15 cm and width by 2cm on each piece. to distribute the load 2 full layers of 5,6 oz cloth . Same layout top and bottom.


Thx!,sounds pretty solid.
I have to see what i have available, will do a mix of Carbon,innegra and glass leftovers,vacuum bag the monster.

The board is 940grams before layup so i think i can laminate quite a bit and stay near 2kg finished like yours.Will not bother much with final sanding and fillers,it is xps core and made for banging into docks after all.

oskarhhh
109 posts
13 Apr 2022 5:35AM
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Select to expand quote
NicoDC said..
Nicely finished!
that's the hardest part of building a board.

how did you do it? Epoxy (with micro balloons) filling, sanding and epoxy coat?
i do it like that but want to try something different as it takes a lot of time and sanding epoxy is so hard.
i've got polyester filler for the board i'm about to finish, should be quicker and easier but could melt the eps core.

Thank you! laminated with epoxy, no fillers finished with a few layers of two-component polyurethane paint which is very hard and tough but relatively easy to sand you can get a pretty nice finish if you use 1200-2000 and wet sand

mcrt
643 posts
13 Apr 2022 6:22AM
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Last question :)
Where did you get the anti slip pad?.It looks very nice and lightweight.

NicoDC
222 posts
13 Apr 2022 6:40AM
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Select to expand quote
oskarhhh said..

NicoDC said..
Nicely finished!
that's the hardest part of building a board.

how did you do it? Epoxy (with micro balloons) filling, sanding and epoxy coat?
i do it like that but want to try something different as it takes a lot of time and sanding epoxy is so hard.
i've got polyester filler for the board i'm about to finish, should be quicker and easier but could melt the eps core.


Thank you! laminated with epoxy, no fillers finished with a few layers of two-component polyurethane paint which is very hard and tough but relatively easy to sand you can get a pretty nice finish if you use 1200-2000 and wet sand


Ah yes 2k paint. I've tried one based on polyurethane before but applying the mixed substance was a nightmare. It was so sticky that it was impossible to spread out evenly and the fumes gave me a massive headache. Maybe I should try another brand.

oskarhhh
109 posts
13 Apr 2022 2:45PM
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Select to expand quote
mcrt said..
Last question :)
Where did you get the anti slip pad?.It looks very nice and lightweight.



I bought some EVA foam and made a cutting tool from an old golf club. Rugged the foam with sandpaper, did have some thicker EVA foam as well so I might add those thicker pieces if I need more grip. It's the same material they use to create armorand props for cosplay


















oskarhhh
109 posts
13 Apr 2022 3:01PM
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Select to expand quote
NicoDC said..

oskarhhh said..


NicoDC said..
Nicely finished!
that's the hardest part of building a board.

how did you do it? Epoxy (with micro balloons) filling, sanding and epoxy coat?
i do it like that but want to try something different as it takes a lot of time and sanding epoxy is so hard.
i've got polyester filler for the board i'm about to finish, should be quicker and easier but could melt the eps core.



Thank you! laminated with epoxy, no fillers finished with a few layers of two-component polyurethane paint which is very hard and tough but relatively easy to sand you can get a pretty nice finish if you use 1200-2000 and wet sand



Ah yes 2k paint. I've tried one based on polyurethane before but applying the mixed substance was a nightmare. It was so sticky that it was impossible to spread out evenly and the fumes gave me a massive headache. Maybe I should try another brand.


Yes it can be very strong, l thinned out the paint a bit to have a little extra time and easier to roll out

Seastudent
79 posts
14 Apr 2022 10:48PM
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I really like it. Is the foil through bolted? Andy on boatworks today you tube channel did a bunch of stuff with a two part called alexseal. Roll and no tipping. I used Awlgrip on a fiberglass boat restoration. So shiny. So expensive.

oskarhhh
109 posts
21 Apr 2022 3:40PM
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Select to expand quote
Seastudent said..
I really like it. Is the foil through bolted? Andy on boatworks today you tube channel did a bunch of stuff with a two part called alexseal. Roll and no tipping. I used Awlgrip on a fiberglass boat restoration. So shiny. So expensive.


Yes it's through bolted



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"Homemade pump/wake foilboard" started by oskarhhh