By all means, please tell me how to do a casting set-up for $150.
Melting metal is relatively easy, and casting it only requires
For $150, you need one of these :- http://www.ganoksin.com/gnkurl/1si
Adapters so that you can fit this torch to a standard POL fitting on
a 9 kg BBQ cylinder.
You can make one of these :- http://www.ganoksin.com/gnkurl/1sj
A thimble crucible.
A bag of Portland cement
Some motor oil.
This small unit is quick, and will melt enough metal for most
jewellers needs 250g. If you need to melt more, I have another home
made device that's easy to construct, and costs a little more to
make, but will accept a 1.5kg capacity crucible.
There's a talented chap on another jewellery list that uses the
above setup, but powers it with a small cylinder propane torch, so
his cost far less.
The bad of cement is mixed with the motor oil, to make a casting
medium. It makes a textured finish, but it's not unattractive. You
could opt for lost foam, and just use very fine sand, but you would
have to use polystyrene models
The micro furnace body, will cost you about $20 (max), if you bought
everything. I recycled a milk drink container (about the same size
as a coffee can), so it cost nothing. A K26 fire brick packed around
with Kaowool, the Kaowool needs to be sealed.
Regards Charles A.