Re: Micro keel
- At least one Micro builder subcontracted the lead ballast to a
Another did some research with the people who provide lead shielding
for dentists offices, hospitals and other places who use x-rays. The
were willing to pour a slab of the desired thickness out of which the
desired shape could be cut. They would buy back the excess lead.
So, there are many ways to ballast a cat-yawl.
--- In firstname.lastname@example.org, "Don H. Reed" <donhreed@m...> wrote:
> Gosh, Peter, thanks for saying that...That's a shot in the
arm. 'Cause I
> was beginning to worry. I thought I could sneak by and build
> keel-mess...you've pretty much confirmed my thoughts on the
> is--to be out on the blue enjoying rather than wringing my hands in
> about "keel envy", or worse, keel fall off. Yikes!
> Even if it does, (fall off), @ $0.15 per lbs. for scrap
lead...it'll be back
> to the drawing board for sure. Now that's an Idea! Why hasn't one
> faithful gone into the mass produced, Micro-keel business? [It's a
> rhetorical question] ;-)
> Thanks for the help.
> -----Original Message-----
> From: Peter Vanderwaart <pvanderw@o...>
> To: email@example.com <firstname.lastname@example.org>
> Date: Wednesday, November 01, 2000 11:09 AM
> Subject: [bolger] Re: Micro keel
> >> clogged up. Molten lead splashed and hardened immediately--
> >> feeder hole.
> >Up to now, all the stories I have read about pouring keels include
> >the part where the hero takes a propane torch and heats the outlet
> >pipe to re-melt the plug that forms there.
> >I don't think that the Micro design relies on any strength from the
> >lead keel. If you get the keel properly built around the lead, you
> >should be fine.
> >Bolger rules!!!
> >- no cursing
> >- stay on topic
> >- use punctuation
> >- add your comments at the TOP and SIGN your posts
> >- add some content: send "thanks!" and "ditto!" posts off-list.
- The list has cycled through keel casting before, but since there are some new
builders it might be worth repeating the following:
Lead can be melted on the kitchen stove (not suggested) or its equivalent - it
only takes around 750 degrees F. The fumes are toxic, and the arsenic usually
found in the melt is a concern. Normal free-flowing ventilation will take care
Any (Really, ANY - even a teaspoon!) water can be disasterous. A dripping tin
roof, a dipper with a few drops of water, or wet wheelweights added to the melt
can blow the melt right out of the pot and all over you. Thick gloves, good
boots, layered (non-synthetic) clothing is called for. Eye protection is a must.
BUT, it is really not that hard to do, and the lead can be sawed (even planed)
once cast, and since the Micro puts it all in a box, it is OK to have a flawed
casting. A half a dozen borrowed Coleman stoves and a few garage sale cast iron
pots will get you in the backyard foundary business. Anyone who has never
skimmed pieces of steel that are floating on a shiny pool of lead is missing a
thrill. Furthermore, you may know an expert - any friends who cast bullets or
fishing weights? Drift boat anchors?
If the lead is really that much of a block to your building, think about a steel
piece from a metal salvage yard. They are reasonable, sell by the pound, and
will cut to order.
Lastly,( though I have cast a lot of lead - but never a keel) consider doing
your cast into a 3 sided box. If it is level, you don't need a top! Disclaimer
- I haven't done it, but I know that the lead finds level all by itself.