C12 - TL70 - Brazil

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DuEholic
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Re: C12 - TL70 - Brazil

Post by DuEholic » Fri May 24, 2019 3:00 pm

Many Thanks Jacques. I will send an email.
We will do both, the fixed one and one from the CV16 to try.
Our main concern regarding the fixed one is that we have mainly beaches here to put the boat in the water and thought that we may have some trouble with the fixed one. But we would like to test it anyway as we wish :D



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Re: C12 - TL70 - Brazil

Post by jacquesmm » Fri May 24, 2019 5:28 pm

When using the fixed one, use very small screws to fasten the gudgeons (female part) to the transom. If you ever beach the boat fill speed, the screws will let go without breaking anything. Or use anything else that can act as a fuse: break something cheap and easy to replace.
Jacques Mertens - Designer
http://bateau.com

DuEholic
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Re: C12 - TL70 - Brazil

Post by DuEholic » Fri May 24, 2019 10:58 pm

Thanks Jacques, understood, we will follow your advice :-)

Today we have finally finished to assembly side and bottom panels with butt blocks.
As it was the first tim we have experiences expoxy, it took us a little time to get used to its viscosity...

We did the butt blocks process as follow:

1- Cut and the butt block from the plywood

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2- Saturate all the part of wood that would be in contact with epoxy.

Regarding the preparation of epoxy and hardener, it has been a bit challenging. We were looking for some recipient to get the right proportion 2/1 but due to the viscosity of the resin, it was quite difficult to be as accurate as we would like to be...

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We have also realized that doing small quantity was easier than preparing more that we may need immediately as the texture seems to change and get hard quite quickly..

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at this point we didn't know how long we add to wait to glue with the filete... We have read about the "point of the gel"... but as it was late and we didn't know if that point would be in the next 2h or in 10h as the total time to dry was 24h... we went to bed hopping to reach that point early in the morning. But in the morning it was already dry. So we have sanded the areas that would be glued together.

We then prepare the misture, with epoxy , hardener and wood flour. As we didn't found wood flour, we decided to do it, but realise that it wasn't that good and will found a new solution for the followings...

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Here is the result:

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And then assembly parts together and put weight on it... waiting to see the result tomorrow...

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piperdown
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Re: C12 - TL70 - Brazil

Post by piperdown » Fri May 24, 2019 11:32 pm

If there is a wood shop anywhere near you it might be a source of wood flour from sanding operations. You might be able to get a large amount and use the strainer to get the fine wood powder.
Eric (aka, piperdown)

"Give an Irishman lager for a month and he's a dead man. An Irishman's stomach is lined with copper, and the beer corrodes it. But whiskey polishes the copper and is the saving of him." --> Mark Twain

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Re: C12 - TL70 - Brazil

Post by DuEholic » Mon May 27, 2019 8:41 am

piperdown wrote:
Fri May 24, 2019 11:32 pm
If there is a wood shop anywhere near you it might be a source of wood flour from sanding operations. You might be able to get a large amount and use the strainer to get the fine wood powder.
Many Thanks :-) we found a source of wood today in a city around. But it is not as fine powder as we imagine, so we'll need the strainer as well. We are now ready to continue :D

Have a nice day

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Re: C12 - TL70 - Brazil

Post by DuEholic » Thu May 30, 2019 11:21 pm

Good night,

a little update about the last days... We've attached and stitched the panels (bottom and side) together with plastic ties:

At that point, we have realised that we did one butt blocks's side panel in the wrong side of the plywood:

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Once attached we test the position of the frames and realised that fhe frame B wasn't in the right position as showed in Jacques'drawings... actually it is 20cm forward.... is it a big issue?
We are considering adding an extra frame in the original position of frame B to reinforced the structure... does this sound a good idea?

The following day, we have saturated the seams with epoxy,

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and once dried did the putty fillets... we took some time to get the right fillets putty consistency... at the beginning it was too liquid but understand in putting in practice...

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Today we began to test the fiberglass on the seams... but have some interrogations?

- Do we have to cut the fiberglass type the whole seams side or can we cut it in the middle? because some seams have more than 3 meter and in Brazil, we don't have fiberglass tape, we buy a kind of fiber tape tissu...

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do you have some recommendations for working with this material?

If you are interested, you can see more fotos on this link: https://www.maripoulain.com/projeto-tl-70/

Thanks for being with us, it is a challenging but really interesting experienced...

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Re: C12 - TL70 - Brazil

Post by Fuzz » Fri May 31, 2019 3:09 am

It is great watching you put this boat together :D If it were me I would cut the glass however it worked out the best for me. Not sure what you are using for glass but I am pretty sure the finished product will end up being stronger than it has to be. Most of us builders over build to some degree.

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OrangeQuest
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Re: C12 - TL70 - Brazil

Post by OrangeQuest » Fri May 31, 2019 5:45 am

Your build is looking great!
"that it isn't just an ordinary sort of boat. Sometimes it's a Boat, and sometimes it's more of an Accident. It all depends." "Depends on what?" "On whether I'm on the top of it or underneath it."
A. A. Milne

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Re: C12 - TL70 - Brazil

Post by Jeff » Fri May 31, 2019 7:44 am

Nice build guys!!! Jeff

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Re: C12 - TL70 - Brazil

Post by piperdown » Fri May 31, 2019 7:56 am

Did you place another butt block on the inside of the boat on the panel? If not, I would add the butt block on the inside and after it cures I would sand down the butt block on the outside hull.

Had to convert metric to inches...lol, 8 inches out of position frame. Not sure anyone but JM can tell you if you need another frame or to cut it out and re-position. The frames are structural AND are in locations to allow a boat that is fair.

If you don't have fiberglass tape, get what you can and cut it to the width and length you need. It is better to have long strips but if you cannot get long strips you can overlap the strips by a couple of inches (at least 5 cm but I'd go 6 cm).
Eric (aka, piperdown)

"Give an Irishman lager for a month and he's a dead man. An Irishman's stomach is lined with copper, and the beer corrodes it. But whiskey polishes the copper and is the saving of him." --> Mark Twain

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