paulownia + polyester+ fiberglass: rocker and flex

What works and what doesn't. Share design ideas, references and contacts for paipo board builders.
asier esnal
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paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Thu Nov 29, 2018 4:51 pm

First paipo prototype made in paulowia polyester and fiberglass. It has been much better than expected
I want to thank Sergi Flama Galanó and Patxi Navarro for their great help and all of you from the forum that make it so great

the paipo is a 44x21.5x18mm of paulowia on a single board, I put it on top of a board with a block on the end, 90mm rocker. I have refined it I have not done any previous treatment, neither heat nor wet, I have counted it to contrabeta is the most important of this idea

I have enfibrado with a cloth on each side of 6 oz and uv polyester. After the release, there is a 60mm rocker with an elastic bed flex, very noble, not bamboo type. when putting fiber and resin has picked up weight, it has remained in 3.2kg

I leave you a video of flex, I do not know how I can do it so that you see it directly in the forum

https://www.facebook.com/asier.esnal.9/ ... =3&theater
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asier esnal
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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Fri Nov 30, 2018 12:53 pm

it's already finished, I'm a little afraid of the weight, it's been 4kg counting the fins and everything. Will it float enough? I have to find a way to lighten

You can remove the fiberglass and resin and paste a thin sheet of melamine, synthetic wood imitation veneer and many colors to make furniture
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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by bgreen » Fri Nov 30, 2018 4:55 pm

Treat it as an experiment. Try it without fins. It may be too heavy as you don't need to even glass pauwlonia. Oiling them can give a good finish.

Without fins and fibreglass these are low flotation boards - they will have their place. You won't be outpaddling SUPs.

asier esnal
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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Fri Nov 30, 2018 5:29 pm

to get the rocker and that flex I have to cut the wood in contraction direction to the feed, if I do not give fiberglass part by just touching it,

I do not like the paipos without fins, nor the bodyboard, I hate the lateral displacements and skids

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by bgreen » Fri Nov 30, 2018 5:49 pm

Do you use google translate? I'm not sure what you mean by: "if I do not give fiberglass part by just touching it,"

You'll find these thin wood boards don't spin out like foam boards or boogie might. They are a different craft and sit in the water more.

The real test is in the water.

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Sat Dec 01, 2018 12:33 am

Do you use google translate? yes, unfortunately I have no ability to learn English, I have tried . I have dyslexia, this gives me a very restless mind with a lot of creativity, but it prevents me from writing and reading. I can not have everything in life, I'm happy as I am

I'm not sure what you mean by: "if I do not give fiberglass part by just touching it," the wood is terribly weak,

They are a different craft and sit in the water more.: I'm very happy to hear this. I'm going to give the paipo a few hours in the water to draw conclusions, maybe with only 2 keels and smaller make the function, I always have time to put another 2 plugs in the middle of the 4 that I have put.

the paulowia costs me 20e per paipo, it allows me to make a few paipos

Thank you very much for the recommendations

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by bgreen » Sat Dec 01, 2018 6:25 am

Ok, if I understand you correctly, you are saying you needed to glass the board, because the wood is too weak. It is a light wood but shouldn't be too soft (you shouldn't be able to squeeze it and make a dent).

Try the board - you'll soon know if it works or not. If it doesn't paddle too well, it may be a shorebreak board.

Enjoy the ride.

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by GeoffreyLevens » Sat Dec 01, 2018 12:41 pm

Bob, I think he meant that it needed glass because he cut it out so that the grain runs across the width of the board to increase flex; but that weakens it considerably so--glass. I really like the look of the flex in the video/FB link. Nice and springy.

Asier esnal, thin wood board like that one, the edges can act as fin if you properly use your hips and hands to push them into the water/wave face. It is a different style or method of controlling the board than for one with fins. And no fins is faster! ;)

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by GeoffreyLevens » Sat Dec 01, 2018 12:43 pm

I spent a bunch of time in Ecuador. Though I knew a little Spanish and was studying it, I had to use google translate a couple times for critical banking issues and it would have been hilarious if there hadn't been so much of my life's savings on the line! Total slap stick comedy with officious, Kafkaesque, bank prigs and regulations.

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Sat Dec 01, 2018 1:41 pm

GeoffreyLevens

Bob, I think he meant that it needed glass because he cut it out so that the grain runs across the width of the board to increase flex; but that weakens it considerably so--glass. I really like the look of the flex in the video/FB link. Nice and springy.

perfect, that's what I wanted to say, I feel the confusion, I do not know how to solve my writings in English, I'm really sorry
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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Sat Dec 01, 2018 1:50 pm

these are some image captures for which you can not see the video
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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by bgreen » Sat Dec 01, 2018 8:30 pm

Thanks Geoffrey, this may have been explained previously and I missed it.

Time will tell whether working cross grained is a good idea or not.

If the boards are too heavy, consider, working with the grain and a different finish.

How they surf will be the test.

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Sun Dec 02, 2018 7:02 am

I have seen this carbon fiber. laminated directly with the hotcoat: carbon fiber + polyester + paraffin, I think I can lighten the weight.

Vector Net XP 227 - 1/2" Diamond Pattern (50cm)

I do not know if with this carbon cloth I will have such good results compared to 6oz fiberglass
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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by GeoffreyLevens » Sun Dec 02, 2018 11:32 am

asier esnal wrote:perfect, that's what I wanted to say, I feel the confusion, I do not know how to solve my writings in English, I'm really sorry
No apology necessary. I have felt the confusion and chaos of trying to communicate in someone else's language. Some people can just pick up other languages with ease. Not me though! After 1 1/2 years of one or two hours a day study and talking to people on the street and in shops, I could just about deal with shopping for groceries, ordering food in a restaurant, or telling a taxi driver where I wanted to go. More than that I was drowning in a stormy sea :lol:

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by bgreen » Mon Dec 03, 2018 7:39 am

Communication even between English speakers can be difficult. I've had people in NZ, Canada and the US not be able to understand me.

It's often helpful to translate something and then translate it back into the original language and see if it makes sense.

Rod and I have done a couple of bi-lingual interviews - he's working on a French& English one currently. An option is to make a post in Spanish and add the English translation. A good opportunity to improve our Spanish.

I've also used lots of translation programs. Translate with and between programs and see which works best.

Besides google there is:

https://spanishdictionary.cc/spanish-to-english
http://webtranslation.paralink.com/Span ... anslation/
https://www.babelfish.com/

I used to use this but it's not working currently: https://www.freetranslation.com/

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Mon Dec 03, 2018 8:34 am

bgreen wrote:Communication even between English speakers can be difficult. I've had people in NZ, Canada and the US not be able to understand me.

It's often helpful to translate something and then translate it back into the original language and see if it makes sense.

Rod and I have done a couple of bi-lingual interviews - he's working on a French& English one currently. An option is to make a post in Spanish and add the English translation. A good opportunity to improve our Spanish.

I've also used lots of translation programs. Translate with and between programs and see which works best.

Besides google there is:

https://spanishdictionary.cc/spanish-to-english
http://webtranslation.paralink.com/Span ... anslation/
https://www.babelfish.com/

bgreen: I used to use this but it's not working currently: https://www.freetranslation.com/
An option is to make a post in Spanish and add the English translation:

It's a great idea, from now on, if it does not bother you for complicated things, I'll use this form of communication. I'm going to look at the pages that you've passed me, I want to improve, thanks again
es una gran idea, a partir de ahora, si no os molesta para las cosas complicadas usare esta forma de comunicación. voy a mirar las paginas que me has pasado, quiero mejorar, gracias de nuevo

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by GeoffreyLevens » Mon Dec 03, 2018 11:36 am

bgreen wrote:It's often helpful to translate something and then translate it back into the original language and see if it makes sense.
If not helpful, at least hilarious! Trying that when I was in Ecuador was how I found out just how much trouble I was in...

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by GeoffreyLevens » Mon Dec 03, 2018 11:38 am

Or for more fun, type it in your language and translate to another and back but then copy the translation and paste to translate back and forth another time or two. Won't take many goes to end up with complete word salad.

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Mon Dec 03, 2018 5:28 pm

first day of test. When I got into the water, I had problems with the minimum flotation of the wooden paipo, I have never had anything like that. I've gotten used to it, but I miss something more floating. Frankenboogie has good ideas, I'm thinking about 1 inch of eva

when I have taken waves it has worked perfect, it has a sensational grip, a good and nice flex, good shape inspired by the designs of nomastomas

the roker: the work has died, it has saved me from sticking the tip of the maipo into the water a few times

fins: very happy with the navigation. I have doubts, if I put 2 large fins they will work just as well and it will be less work to make the paipo

weight: in the water or it feels as heavy as under the arm, it really has not worried me. the configuration of 6ozfiberglass + 18mm paulowia + 6ozfiberglass stays like this, I will not change anything, if it works better do not touch

tomorrow again to the water. I will comment on new sensations


es
primer día de test. cuando me he metido al agua, he tenido problemas con la mínima flotación del paipo de madera, nunca he tenido algo asi. me he acostumbrado, pero echo en falta algo más de flotación.Frankenboogie tiene buenas ideas, estoy pensando en 1 pulgada de eva

cuando he cojido olas ha funcionado perfecto, tiene un agarre sensacional, un buen y agradable flex, buen shape inspirado en los diseños de nomastomas

el roker: ha perecido la pena el trabajo, me ha salvado de clavar la punta del maipo en el agua unas cuantas veces

fins: muy contento con la navegación. tengo dudas, si pongo 2 fins grandes funcionaran igual de bien y será menos trabajo para hacer el paipo

peso: en el agua no se siente tan pesado como debajo del brazo, realmente no me ha preocupado. la configuracion de 6ozfiberglass +18mm paulowia + 6ozfiberglass se queda como esta, no voy a cambiar nada, si funciona mejor no tocar

mañana otra vez al agua. os comentare nuevas sensaciones

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Re: paulownia + polyester+ fiberglass: rocker and flex

Unread post by asier esnal » Tue Dec 04, 2018 10:05 am

Second day in the water. very happy, I have learned to go up the waves without needing the volume and the flotation, a great advance, has entered series of 1.5m and I have been able to overcome the waves very easy, so I do not need more volume, enchanted

table design: siemto 21 very wide, I have a table, I'm thinking of a second one for big waves at 19.5

fins: as this table is going to be narrower I thought of a twinfin system, to compensate for the lack of the rear keels I will put a more radical tail, with more grip, more pointed

es
segundo dia en el agua. muy contento, he aprendido ha remontar las olas sin necesitar el volumen y la flotacion, un gran avance, ha entrado series de 1.5m y he podido remontar las olas muy facil, asi que no necesito mas volumen, encantado

diseño de tabla: siemto 21 muy ancha, me sobra tabla, estoy pensando en una segunda para olas grandes en 19.5

fins: como esta tabla va a ser mas estrecha he pensado en un sistema de twinfin, para compensar la falta de las quillas trasera voy a poner un tail mas radical, con mas agarre, mas puntiagudo
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