After following the
previous two tutorials you should be ready to pour
the properly heated metal into a correctly clamped
dry mold.
Pour the metal steadily, avoid hitting
side of the pour hole. Do not stop until the pour
hole 'well' is full. The weight of the metal
in this 'well' pushes the metal into the extremities
of the miniature (Fig.1).
(Fig.2 & 3) While pouring and
for a few seconds after it is advisable to tap the
mold gently with a piece of wood.
This helps settle the metal in the mold.
You could also tap the entire mold,
using both hands, off the table it rests on. But use
extreme caution not to spill any of the metal on yourself.
STOP tapping when metal
shows signs of cooling and stiffening (after 5 seconds
or so) or risk cracking and damaging the newly cast
miniature inside.
Slowly and carefully part the mould
about five minutes after pouring. If the casts
have not properly filled - DON'T PANIC.
You may have to try a couple of
times to make the mold work.
If it still fails to fill awkward
areas like reins or bayonets (Fig.4) then venting
will be required. That is covered in the next tutorial.
Tips to remember:
- Pour gently to fill the 'Well'
of the mold.
- Tap the mold gently for a few
seconds after pouring.
- STOP tapping when the metal begins
to cool and stiffen.
- Wait at least five minutes before
opening mold.
- If a gap appears in the casting,
remelt the metal and try again.
- Consider Venting for stubborn
areas.
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