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JayyyyGee


Joined: 04 Feb 2012
Posts: 2159
PostPosted: Fri Jun 01, 2012 10:03 pm    Post subject: Reply with quote

Quote:
Tip for pouring foam ,use polystyrene boxes from the market


No good @ all
Chemical reaction from urathane will disolve styrene b4 your eyes may work if styrene box is lined with plastic sheeting

Quote:
plastic bags heat welded to seal from water logging


Hate that system plastic bags dont last they rip & water gets it making it worse cause moisture is traped in plastic
Copped that in last purchased goat flotation was that water logged it wasn't funny

I glass the floation actually started glass'n today

Quote:
Question , is your coffer damn sealed from fore and aft compartments?


Nope water can run through entire hull hull will be a wet deck & login behind the way i do floatation is simple

I pack it in wall to wall on the frames hence the cradles only cavity is 60mm off hull skin figure even if i hit something out @ sea & split the hull only a minimal amount of water can get in due to the volume of flotation

Quote:
strainer going over bait tank outlet??


No strainer have a better system just have to wait till i get around to making it

Quote:
Can I ask why not using the sheets of foam? is it a cost thing?


It's actually more expensive doing it the way i am liquid aint cheap but to save on the liquids i'm using upall scrap off cuts in the cradle to make up the volume
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bwana


Joined: 14 Jun 2003
Posts: 6691
PostPosted: Sat Jun 02, 2012 4:01 am    Post subject: Reply with quote

Quote:
No good @ all
Chemical reaction from urathane will disolve styrene b4 your eyes may work if styrene box is lined with plastic sheeting


That aint true, did 4.5 sq mtrs twice and no such issue??outer layer of mix hardens before melting box away.

Use black concreters plastic , make a simple hot wire welder, works a treat.

Sealed coffer dams arnt about retaining floatation if hull foam filled , its about retaining fuel in the compartment if your tank splits .


Tip for no relavant reason ,want to make glue? mix polystyrene with petrol..

wink-fish.gif

Regards John
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JayyyyGee


Joined: 04 Feb 2012
Posts: 2159
PostPosted: Sat Jun 02, 2012 9:24 am    Post subject: Reply with quote

Quote:
Use black concreters plastic


Like i said need plastic lining you didn't mention that in original post

Even in the cradles i made i used plastic liner else i would've had it sticking to melamine

Quote:
its about retaining fuel in the compartment if your tank splits


NEVER HAPPEN
I use BLACK SIKAFLEX laughing-fish.gif laughing-fish.gif
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bwana


Joined: 14 Jun 2003
Posts: 6691
PostPosted: Sat Jun 02, 2012 2:28 pm    Post subject: Reply with quote

Quote:
Like i said need plastic lining you didn't mention that in original post


Thats for bagging after pour wink-fish.gif

Regards John
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cajunnsw


Joined: 15 Dec 2005
Posts: 80
PostPosted: Sat Jun 02, 2012 4:18 pm    Post subject: Re: Reply with quote

[quote="bwana"]
Quote:


Tip for no relavant reason ,want to make glue? mix polystyrene with petrol..


Regards John


That is the basics of Napalm.
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bwana


Joined: 14 Jun 2003
Posts: 6691
PostPosted: Sat Jun 02, 2012 5:10 pm    Post subject: Reply with quote

unhappy-fish.gif Cajunn, was taught that trick by the Africans, handy if your stuck for glue in the bush.

Regards John
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JayyyyGee


Joined: 04 Feb 2012
Posts: 2159
PostPosted: Sat Jun 02, 2012 10:49 pm    Post subject: Reply with quote

Quote:
handy if your stuck for glue in the bush


Surely there's other thing you can sniff confused-fish.gif
Put your foot in that one laughing-fish.gif laughing-fish.gif

Took a few pics today upgrade thread tomorro
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JayyyyGee


Joined: 04 Feb 2012
Posts: 2159
PostPosted: Sun Jun 03, 2012 7:07 pm    Post subject: Reply with quote

Bit of an update

Bear in mind when i work, i work alone hence my methods will differ to what some may know when it comes to a project like this

I have to pre think everything including how to sheet frame etc unasisted having this workshop makes it so much easier

I'm pretty good @ making a mess laughing-fish.gif

Not all in the pic but floation cut into blocks with niche's etc cut into them allowing for fuel lines, etc etc
This was the udder day nearly got them all glass'd up know



Next pic
The hull i pre cut via mdf templates but sides i dont full sheet goes on & explained later how i trim to shape



When working on your own holding things into place becomes difficult @ times not that clear in pic but i tack weld short bits of angle where needed to get vice grips/clamps a fastening point in this case lining up the nose



Next pic

Everything welded up it's triming time

If you look @ bottom of sheet you'll notice a 13mm hole every 400mm apart these holes go entire length of sheet & what i secure a ratchet strap to in order to pull sheet tight up against spray chine when welding.

After which a router with a tracer wheel is used to trim off excess so side skin sits flush with spray chine ready for exterior welding when i flip goat over

Router cuts are visible in pic



Next pic

Love this toy it's a self leveling lazer level shoot's lines both vertical & horizontally
Gave me cut for nose which was done prior to 2nd sheet being welded on
Gave me lines when cutting gunel hight & the 150mm rise on fore deck

All this is in relation to what i said early in thread

I'm not working with plans other than the frames

I make my own lines as i'm going along & one of the reasons i dont pre cut side skins
Texta is used to draw in a multiple of variations & when i've got one i'm happy with that's the one i cut to



Next pic

Internal view of goat

I tack on braces, cross braces etc
They are what stops everthing from moving/deviating from my marks braces hold everything true



Next pic port side with bottom not trimed yet



Next pic

Starboard side all trimed up

Copped reflective sots on pic for those wanting to jump in & accuse my goat of having some form of desease



Last pic

Dont like tranny's hanging off transom so ido them this way
Make a box when time comes screw up tranny to required level & seal it in with this wonderfull product called SIKAFLEX

I also recomend it on leaky fuel tanks laughing-fish.gif laughing-fish.gif


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ggoss


Joined: 03 Apr 2003
Posts: 3227
PostPosted: Sun Jun 03, 2012 7:50 pm    Post subject: Reply with quote

Great work fella, particularly as you are doing it all on your own. I'm not sure if I would have the arxidia to even attempt anything like it.

Shaping up very nicely too. Can't wait to see more. cool-fish.gif wink-fish.gif
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KRAY-Z-TRAIN


Joined: 11 Apr 2010
Posts: 262
PostPosted: Sun Jun 03, 2012 7:53 pm    Post subject: Re: Reply with quote

ggoss wrote:
Great work fella, particularly as you are doing it all on your own. I'm not sure if I would have the arxidia to even attempt anything like it.

Shaping up very nicely too. Can't wait to see more. cool-fish.gif wink-fish.gif


re......you did......& won wink-fish.gif
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