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Reply | Forward Message #711 of 6642 |
Re: Moulds

-Hi,
I'm with jim with wanting to know more about what type of moulds and
from what materials. I still really like the idea of plantation grown
low rot, low alergenic, light timber as a core. I think it looks
pretty amazing if left unpainted internally and it always seems a
pity to end up painting the outside to protect the resin.
I must admit that vertical foam strips on a female mould look pretty
good as a method and avoiding fairing would be a wonderful.
Do you propose using a well faired boat as a plug to make a female
mould. I will probably be building an extended Harry, so people will
be welcome to use it as a plug if deemed fair enough - especially if
they help me fair it- providing, of course, they have bought their
plans. I don't know how many boats would need to be built before it
pays its way, especiall as the hull building seems such a small part
of the time building.
Robert

-- In harryproa@..., "colcampey" <cjcampey@i...> wrote:
> Hi all,
>
> How many list members would be interested in having hulls, for any
of
> the Harryproas, produced from a mould ( That's mold for our
American
> brethren ) to get a head start in the buiding of their boat? If
there
> are enough then the cost of the fairest, lightest hull becomes less
> than a one-off hull, covering the cost of the mo(u)ld as well.
>
> Regards,
>
> Col Campey




Tue Nov 11, 2003 12:54 am

cateran1949
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Message #711 of 6642 |
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... of ... American ... there...
Robert
cateran1949
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Nov 11, 2003
12:24 am

-Hi, I'm with jim with wanting to know more about what type of moulds and from what materials. I still really like the idea of plantation grown low rot, low...
Robert
cateran1949
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Nov 11, 2003
12:54 am

Of course despite the material debate which for me is best left to the designer to optimize weight/ strength and fairness, the issue remains which hulls and...
jjtctaylor
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Nov 11, 2003
2:48 am

I'm in a similar situation but I will indicate my interest in a non folding harrigami with full size bunks. My preference would be for straight F/glass in...
Tony Richardson
khsd16
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Nov 11, 2003
3:24 am

I think we all have our own idea's (needs) for our own boat, but if you think about it, if a couple of the harry range of boats were moulded by mixing and...
johnmaianbar
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Nov 11, 2003
9:13 am

Hi, I would certainly be interested in hulls from moulds ( visionary), especially foam sandwich!. I know wood is an excellent mat'l but it is labor intensive...
Peter MacLean
mac0522003
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Nov 11, 2003
11:03 am

G'day, We have a relatively low cost technique for building foam/epoxy hulls (painted post mould) using cheap female moulds. It is a technique I used on W...
Rob Denney
proaharry
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Nov 11, 2003
1:22 pm

G'day, I also like the look of wood, but have a problem with sanding it to get it fair! The proposed technique uses a strip planked mould (probably mdf as it ...
Rob Denney
proaharry
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Nov 11, 2003
1:31 pm

G'day, With our hull shapes, it may be feasible to use the same moulds for various size boats. For example, an 18m/60' hull 2m/6'8" wide could have near flat...
Rob Denney
proaharry
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Nov 11, 2003
1:39 pm

G'day, The extra weight of a non cored hull will be significant, particularly in the smaller boats. A gel coat finish is not envisaged as it requires a huge...
Rob Denney
proaharry
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Nov 11, 2003
1:48 pm

Count me in! I am interested in a camper on up to Harrigami but only if the folding for trailering is available. Thanks Bob G. ... From: Rob Denney...
Grona Jr, Robert J.
ppl_rjg
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Nov 11, 2003
4:27 pm

Me too! Elementarry for starters. I might need a custom ww hull though, to accommodate those ideas we were discussing offlist, Rob. Andrew ... From: Grona Jr,...
Andrew Dickson
andrew@...
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Nov 12, 2003
3:47 am

Hi Rob Any idea of a rough price for such an Elementarry, assuming several orders to defray mould costs etc.? Enjoy Jim Baltaxe ITS Desktop Support Victoria...
Jim Baltaxe
jimbaltaxe
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Nov 11, 2003
10:12 pm

Hi Andrew Could I be so bold as to ask you what some of those offline ideas might be? I'm also very interested in an Elementarry with a camping layout. I sort...
Jim Baltaxe
jimbaltaxe
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Nov 12, 2003
8:43 pm

Around here the usual reason for building small molded boats is to imediately launch off into ever larger sizes, it is rarely commercial to build small ones...
proaconstrictor
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Nov 12, 2003
9:14 pm

Hi Jim, For sure, no probs. I really want a small boat to go camp-cruising on, and my background in kayak expeditioning gives me the desire to: - make sails...
Andrew Dickson
andrew@...
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Nov 13, 2003
1:29 am

G'day, Not at the moment. All a bit chicken and egg, unfortunately. We need the orders to pay for the moulds, but can't quote prices till we have built a ...
Rob Denney
proaharry
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Nov 13, 2003
1:57 am

G'day, Not a pest at all. I appreciate any comments, from any source (even you, Fritz :-). The camping layout we discussed had telescoping beams operated by...
Rob Denney
proaharry
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Nov 13, 2003
2:39 am

G'day, A thought provoking letter. Thanks. The reasons for building a small one are 1) The moulding technique is new. We need to know what is involved before...
Rob Denney
proaharry
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Nov 13, 2003
3:00 am

I'm not sure that testing ideas on the smaller proa means they will scale up all that well on a larger one. To take your Hobie example the steering system on...
proaconstrictor
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Nov 13, 2003
5:03 pm

I'm not sure I understand what you're getting at but if I want to build some folding beams for Rob and for myself (and for anyone else awho may want them)...
jameshanahan
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Nov 14, 2003
2:28 am

Folding beams would make a hell of a difference to how often people would get sailing. I don't see what the scaling problems are in terms of stress and strain....
Robert
cateran1949
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Nov 14, 2003
6:45 am

... going ... power. ... have ... materials ... at ... at ... of ... small proa, is handy because i can establish production time which doesn't always scale in...
jameshanahan
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Nov 14, 2003
11:38 pm

The molds I'm talking about are the molds for hulls, not beams. Anything anyone wants to do that advances the craft on their own is fine by me. Anything that...
proaconstrictor
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Nov 15, 2003
6:51 pm

... I would have agreed with you completely on this point until I started to fair my 5m strip plank and plywood proa. I love working in strip plank and plywood...
Robert
cateran1949
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Nov 16, 2003
11:01 pm

We are mostly in agreement it seems. I hope the PHD defence goes every bit as well. Good luck!...
proaconstrictor
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Nov 22, 2003
1:06 am

I have a 2 "Shark" cats, 20ft, ply decks, fold down the centerline, we never sail them because of how difficult they are to unfold and setup. We even...
surryequip
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Feb 6, 2004
7:05 pm

I tend to agree about the viability locally but expensive in freight for further afield. I'd certainly consider a mould 700km away for a bigger boat but would...
Robert
cateran1949
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Nov 14, 2003
7:11 am

Hi Rob What you say makes a great deal of sense and is very encouraging. Let's break the Chicken & Egg cycle and at least pick a small design to work on. If...
Jim Baltaxe
jimbaltaxe
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Nov 13, 2003
3:22 am

G'day, Forgot to mention. No problem with alloy beams (apart from weight, corrosion and fatigue ;-), although they would need to be built up with bog on the...
Rob Denney
proaharry
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Nov 13, 2003
3:46 am
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