Jeb,
I cast my lead weights using an empty tin can that was approx. the right shape
( Tin of hereford corned beef , as I recall) . It was a rectangle with rounded
corners that seemed the right shape.
The lead was heated in a cast iron skillet frypan , outdoors, on my camp stove
( Propane or Naptha type) on a warm summer day. These are cheap skillets for a
couple of bucks.
Carefully pour the molten lead into the can on a concrete floor . After it
cools , cut away the can and drill and carve the lead block down to the
finished weight needed. Dispose of the skillet never to be used again.
Regards
Chris GardinerC-GKRZ KR2S 300 hours flying time
On Friday, December 15, 2017 1:24 PM, Parley T Byington via KRnet
<[email protected]> wrote:
Dec.15,2017
Subject: Lead aileron castings
To whom it may concern;
I calculated the size/weight needed then made a mold using plaster paris of
that calculation.
I heated the mold in the oven to prevent steam explosions prior to pouring the
liquified lead into the mold.
Once the mold was heated to 450 degrees I poured the melted lead (using proper
face shield, gloves, and full body heavy clothing to cover all exposed skin
surfaces) into the mold and let cool. I then shaved the lead weights using a
sure file to get the weight to the exact amount needed to counter the aileron
and perfectly balance it.
Be very careful when pouring molten lead into plaster molds that the mold has
been sufficiently heated so that all water is gone or it WILL EXPODE in your
face throwing molten lead in all directions !
Another alternative is to use heavy paper/cardboard to form a square mold to
pour the molten lead into, the sides can be taped together using ordinary
masking tape, several layers, without the tape burning through until the lead
solidifies. I have used both types of molds.
Hope this is of some help
Signed A Vietnam veteran
Parley Byington
Kr-2 N54PB
[email protected]
Henderson Nevada
On Dec 15, 2017, at 10:08, jeb via KRnet <[email protected]> wrote:
> I'm not satisfied with the lead weights I cast oh so many years ago.
> So, polling the list - what did you use to make the mold?
>
>
>
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