Re: Centerboard weight
That should work fine Bob. I did my Micro keel that way. A little
more volume is required, but I would not think too critical for the
Bobcat...I worried about heat buildup, but using enough epoxy to only
wet the lead balls, there was not enough concentration of resin to
cause a problem.
DonB
more volume is required, but I would not think too critical for the
Bobcat...I worried about heat buildup, but using enough epoxy to only
wet the lead balls, there was not enough concentration of resin to
cause a problem.
DonB
--- In bolger@y..., "rdchamberland" <cha62759@t...> wrote:
> I am at the point where I have to pour the lead weight for my Bobcat
> centerboard.
> By the time I find the lead, a pot, a fire, etc. I will be ready to
> dump the whole project. My inclination is to go to my friendly
> Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
> Pouring it in layers should prevent heat buildup as the epoxy cures.
> Any comments?
> Bob Chamberland
I've done this any number of times. if you stick with small shot, there isn't enough epoxy in the mix
to cause a heat problem. I usually drive some sm nails in the side of the cutout. Interesting for
bird shooters/loaders, there's usually some rust on the surface of the lead shot after use, so it's
not all lead. Also, I have never poured a 25lb bag size batch. Usually a 4" hole saw size is enough.
Clyde
rdchamberland wrote:
to cause a heat problem. I usually drive some sm nails in the side of the cutout. Interesting for
bird shooters/loaders, there's usually some rust on the surface of the lead shot after use, so it's
not all lead. Also, I have never poured a 25lb bag size batch. Usually a 4" hole saw size is enough.
Clyde
rdchamberland wrote:
> I am at the point where I have to pour the lead weight for my Bobcat
> centerboard.
> By the time I find the lead, a pot, a fire, etc. I will be ready to
> dump the whole project. My inclination is to go to my friendly
> Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
> Pouring it in layers should prevent heat buildup as the epoxy cures.
> Any comments?
> Bob Chamberland
>
>
> Bolger rules!!!
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> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
>
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It's not that bad -- more fun than working with epoxy, anyway. A camping
stove and small pot will work, and you can do the pour in several parts if
you do them close together. FWIW, I described my experience in the old
Chebacco News 21, now found at www.chebacco.com under old articles. (I've
also melted lead on the kitchen stove in the past, but that may not be a
real good idea.)
Jamie Orr
-----Original Message-----
From: rdchamberland [mailto:cha62759@...]
Sent: March 15, 2002 8:17 AM
To:bolger@yahoogroups.com
Subject: [bolger] Centerboard weight
I am at the point where I have to pour the lead weight for my Bobcat
centerboard.
By the time I find the lead, a pot, a fire, etc. I will be ready to
dump the whole project. My inclination is to go to my friendly
Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
Pouring it in layers should prevent heat buildup as the epoxy cures.
Any comments?
Bob Chamberland
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- pls take "personals" off-list, stay on topic, and punctuate
- add your comments at the TOP and SIGN your posts, snip all you like
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
stove and small pot will work, and you can do the pour in several parts if
you do them close together. FWIW, I described my experience in the old
Chebacco News 21, now found at www.chebacco.com under old articles. (I've
also melted lead on the kitchen stove in the past, but that may not be a
real good idea.)
Jamie Orr
-----Original Message-----
From: rdchamberland [mailto:cha62759@...]
Sent: March 15, 2002 8:17 AM
To:bolger@yahoogroups.com
Subject: [bolger] Centerboard weight
I am at the point where I have to pour the lead weight for my Bobcat
centerboard.
By the time I find the lead, a pot, a fire, etc. I will be ready to
dump the whole project. My inclination is to go to my friendly
Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
Pouring it in layers should prevent heat buildup as the epoxy cures.
Any comments?
Bob Chamberland
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- pls take "personals" off-list, stay on topic, and punctuate
- add your comments at the TOP and SIGN your posts, snip all you like
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
> My inclination is to go to my friendlyThat's precisely what many radio-controlled model yacht classes do.
> Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
You can pack the lead into a smaller space (and get the cg lower
on a fin keel), but that doesn't matter on a centerboard....
--
Susan Davis <futabachan@...>
Hi Bob
Seems like 20lb of encapsulated shot is going to take up a lot more blade
area than the poured weight, either moving the center of mass up, or
weakening the board somewhat.
If you 've already poured a similar weight please ignore what follows:
Don't be daunted by the prospect of pouring the blade weight - a
'disposable' kitchen pot from a charity store, and twenty pounds of tire
weights (probably free) from a tire dealer. Tire weights are dirty and I
used to hassle over cleaning them, but it's a waste of time. All the dirt
either burns off or floats on the molten lead - steel clips and all. Skim
the dross off with a sieve from the dollar store. Lead in that volume will
melt pretty quickly on the BBQ, yours or someone elses.
Cheers
Derek
Seems like 20lb of encapsulated shot is going to take up a lot more blade
area than the poured weight, either moving the center of mass up, or
weakening the board somewhat.
If you 've already poured a similar weight please ignore what follows:
Don't be daunted by the prospect of pouring the blade weight - a
'disposable' kitchen pot from a charity store, and twenty pounds of tire
weights (probably free) from a tire dealer. Tire weights are dirty and I
used to hassle over cleaning them, but it's a waste of time. All the dirt
either burns off or floats on the molten lead - steel clips and all. Skim
the dross off with a sieve from the dollar store. Lead in that volume will
melt pretty quickly on the BBQ, yours or someone elses.
Cheers
Derek
I hear that you can pound it in with a hammer somewhat too, as it is
so soft. Lead weights from the tire store can be used also.
so soft. Lead weights from the tire store can be used also.
> By the time I find the lead, a pot, a fire, etc. I will be ready to
> dump the whole project. My inclination is to go to my friendly
> Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
> My inclination is to go to my friendlyIt's workable. I'm sure that somewhere you can find better advice
> Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
than mine. I would think about putting some glass fibers in the mix
for strength.
PHV
I am at the point where I have to pour the lead weight for my Bobcat
centerboard.
By the time I find the lead, a pot, a fire, etc. I will be ready to
dump the whole project. My inclination is to go to my friendly
Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
Pouring it in layers should prevent heat buildup as the epoxy cures.
Any comments?
Bob Chamberland
centerboard.
By the time I find the lead, a pot, a fire, etc. I will be ready to
dump the whole project. My inclination is to go to my friendly
Dunham's sport shop and buy 20# of lead shot and bed it in epoxy.
Pouring it in layers should prevent heat buildup as the epoxy cures.
Any comments?
Bob Chamberland