I did not use anything. I will sell this furnace. I thought, for a
moment, that I could use it for blacksmithing. So I won it, at a
sensible price, at a factory liquidation. Then I came across a propane
forge last weekend (see thread on a gas cylinder), and then on Tuesday
brought the furnace home and realized that it will not work for
blacksmithing. It is kind of a spectacular thing and the kids were
very excited by the orange hot metal in a little "demo" that I gave
them, but does not fit my needs. So I will sell it in its present
condition to someone who needs it.
You might want to keep it for heat treating. I've got a project I'm
working on that will require some basic heat treating, I think I can get
by with the O/A torch this time (small part), but a proper furnace can
be really handy.
These electric ovens are not practical for blacksmithing, at least
nothing trickier than bending rebar or something. Temps ramp up too
slowly. Don't sell it with that description. It is also not good for
smelting things like gold (ask me how I know). The sole purposes of
this oven are normalizing, annealing, and hardening ferrous alloys.
Here's some of my work:
Not good. A guy commissioned a custom knife from me. Damascus blade,
elephant ivory scales, the whole nine yards.
Then he sent me his gold dental bridge (from an auto accident years ago
when he ate the steering wheel, since replaced with newer chicles),
asked me to inlay the gold and use the rest for a thumb stud with opal
I did as much research as I could. Even asked some questions on this
group. Figured what the hell, it's metal, it has a melting point. Put
it in a crucible and ramp the temperature up. Pour it out and machine
to shape. My crucible (don't laugh) was a piece of fire brick bored out
with a .250" bit. I put the brick and the gold in the oven.
2200 degrees later the gold melted all right, then soaked right into
the porous cracks of the fire brick. I still have the brick, with the
guy's teeth scattered throughout its molecules.
To finish the commission I had to go down to the local jeweler's and
buy a brand new man's gold wedding band. Price astronomical. Then I got
the right crucible and repeated the procedure - with better results
I didn't make a lot of money on that knife, but the customer was happy
Here's some of my work:
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