Re: mould making project
- --- In firstname.lastname@example.org, "jollytanaka"
>make a canoe much like
> I ran across a book a couple of years ago that details how to quickly
> the way you are describing making a plug. The book is called "Building Your Kevlar Canoe:
> A Foolproof Method and Three Foolproof Designs." (I just checked,and it is available
> through Amazon.com).Jeff's comments ring true. Don't forget that if you're using
commercial patterns, they may need to be cut down by a uniform amount
to account for the thickness of the plug materials that exceed the
original pattern size.
In the "Building Your Kevlar Canoe: A Foolproof Method and Three
Foolproof Designs" book mentioned, the author (Jim Moran, to my
recollection) does describe either using the foam/plaster/paraffin
male mold to either build a single canoe OR as the basis of a female
mold. He describes the mold-making operation in a small way but
doesn't get into the differences between canoe & kayak molds.
I have heard that if you are using a boat as a plug, it is better
to choose a sturdy one or risk ending up with a twisted or bent mold
I would find a boatbuilding shop nearby and examine some of their
molds to see how stiffeners, mating flanges, etc. are constructed.
The tricky parts would be getting the mating flanges to be on the
right place on the sides (these would rise at the ends) and doing the
--- Ian Richardson wrote:
> I have an idea about building a "plug" from existing cedar strip
> kayak patterns and then making a GRP mould from that. I've builtmany
> GRP kayaks and sculptures so I'm familiar with that aspect. It'sfrom
> the "plug" that's the unknown area.
> My thinking so far is to loft out the profiles, lace them on to the
> strongback then fill the spaces with something to give me the plug
> which to make a mouldwould
> Can anyone advise me on the mould making procedure, what material
> work best at low budget.built
> Apologies to the wood builders, wood is beautiful I've decided ,
> however that my boat has to be GRP. Solo coastal trips with rough
> landings on rocky shores, I would feel too precious in a strip
> number, If I have a mould I can happily crunch up whatever beach Ineed
> to whenever I need to, If my boat gets damaged, waterside repairswill
> be easier and beyond repair, once I'm home, I can bang out a newboat
> at least possible cost.
> Thanks in advance for any feed back.
> Ian Richardson (Severn Estuary UK)