Gwarn said..
There's nothing wrong with single skin builds.If they last 2 seasons then my goal has been reached as I'll have a new build ready to go. They are fast to build and are cheap.





This is a 4,9"x 29
2 layer 6 oz S glass + patches +Vector carbon netting.
clear epoxy
2.0 eps foam 1/8 wood stringer
Deep tuttle
Simple like a surfboard

Awesome work

Grantmac said..
Gwarn,

What fails on them? Not like the nose is going to get hit....

They get dented and dinged from the rough launching locations that I sail out of as I focus my efforts on protecting the foil from getting dinged so the boards suffer.

Gwarn said..

thedoor said..

Gwarn said..
There's nothing wrong with single skin builds.If they last 2 seasons then my goal has been reached as I'll have a new build ready to go. They are fast to build and are cheap.

You use those half straps much? On my lightwind board I am front strap only currently. I think I move my back foot around too much in lightwind to commit to any particular strap position, also I don't want the strap getting in the way. But those half straps do take up less space

On my medium to highwind board i am full back center strap

I like the half straps as it gives me a place to wedge my foot as I'm driving upwind. Then off the wind they don't get in the way with the rear foot dance. Everything I'm doing is by seat of my pants experiment so in my eyes nothing is right or wrong. The only thing I know for a fact is time on the water is the most important factor in the equation.

I think I am gonna try some

Holly S*** Gwarn! That launch site is brutal! You know a brother wants it if he will launch there! Reapect!

Gwarn said..

Grantmac said..
Gwarn,

What fails on them? Not like the nose is going to get hit....

They get dented and dinged from the rough launching locations that I sail out of as I focus my efforts on protecting the foil from getting dinged so the boards suffer.

Aiuto! The pipes at Treasure Island! The ultimate test for self flagellation!!!!!!

utcminusfour said..

shmish said..

utcminusfour said..
Around $1500. Not all the cost is in that one board, I am still using tools and some materials. It is for the process not the product.
Here is one method that makes sense
www.alaljojo.com/

Is that a wooden skin build? Like www.grainsurfboards.com/ ? I've had plans for a mini malibu for years but never got around to it. I'd be interested in knowing if a wood strip windsurf board would hold up to the stresses of the sport. I've built a couple of wooden boats and may be interested in making a foil board.

No, the alaljojo is compsite cored panels top and bottom with CNC milled foam rails that the end user glasses together. The concept is not much different than the wood surf board methods. The composite panels are stiffer than wood so less stiffners are needed. The have a mold for the top and bottom panels, the magic is that it ships flat so shipping is reasonable and with everything cnc cut and molded at the factory it is pretty easy to build. If I wanted a 87 liter freestyle board I would be all over this.

The alaljojo is a great idea, but the cost is not too great. Even with the welcoming discount the kit is 1900 euro (with no discount it is 2350), plus 300 euros shipment to California. It costs more than a Custom Flikka ...

They get dented and dinged from the rough launching locations that I sail out of as I focus my efforts on protecting the foil from getting dinged so the boards suffer.

Wow! The question is, how long will your gear hold up in those conditions?

jmf1 said..
Hi Gwarn,

I'm find your boards beautiful and KISS (Keep It Simple). I have a few questions:
- do you vacuum bag, or do you build without bagging ?
- is the Vector carbon netting a "nice to have" or a significant part of the overall design and board structure ?
- is the 1/8 wood stringer a "nice to have" or a significant part of the overall design and board structure ?
- do you have some specific preparation of the EPS before laminating (to reduce epoxy impregnation) ?

All other information and advice about you build process welcomed !

I turn around the idea of building my board and try to remove road blocks on my way (like time needed as it may be the limiting factor), specific tooling, steps that could be skipped while maintaining the key performances.

JMF

Thanks
At least for the first two prototypes this build sheet will work. I now have 17 sessions on this board and the deck is dented all up which I expected. The test was to see if the small board will work for my style of riding (Yes it does) as I have no way to see or demo anything like this here in the SF bay area. I'll be lucky if it lasts the rest of the season before it starts taking on water( I'm hard on my board and sails). I'm currently shaping its replacement now and will use a stronger sandwich layup with corcell foam with a carbon layup using bags( more consumables$$ ).

As far as the stringer I feel the benefit is worth the weight as it give you a backbone to lock the boxes to. The places I foil have a lot of sea life and debris in the water that you can't see I hit a lot of things hard so a locked in foil is critical for safety and not to lose my foil $$ so yes the stringer is significant and the blanks are easy to get with them installed for me( Marko SUP blanks) .

I don't do anything to the EPS before glassing 1) Saw the outline 2) power planner 3) screen it 4) flexpad blue softie with 120 grit www.flexpadusa.com/8-inch-sanding-pads/8-inch-blue-softie-flexpad 5) install boxes and plugs 6) glass and hot coat 7)router out boxes, drill plugs and install pad 8) hit the water

The vector netting just looks cool and is cheap.

Gwarn, this is a great aproach!
Thumbs up for prototyping! Plus, this board does look great.

Can you give more info on what conditions you use the board in? Rider weight? Sail size? Is it freeride you do?
I'm thinking about building a foil board next winter adn am currently foiling on a slalom board (Exocet RS 5.5.) i can imagine that quite a few are interested in how userfriendly such a compct board is.

Cheers,
Sven

Any thoughts on a double stringer that would sandwich the mast and foil boxes? Its been a design concept I've had on my mind.
Would make salvaging those components pretty easy as well.

Other than under the feet are there other areas they fail?

Doctorlactic said..
utcminusfour Just super impressed with your, and other's builds here! What did you use for deck grip?

anit slip additive for floor paint from Lowes!

Woohoo! This does look pretty extreme. Not a lot of margin for error here. ??