AsterAnts

>
> A lot of things are cast. Casting isn't particularly difficult, but

Casting is a very skilled proecedure if you want any degree of quality
and consistently to the material produced.

The crucible design and construction is critical.
Special materials must be used to assure that
the melt does not mix with the crucible and that purities are not
introduced,
and that the rate of cooling is uniform and just right.
The design of the crucible is different for each alloy that is cast.

>
> Drill bits I'm not totally sure about, but I think they cast them,
> and then sharpen using millstones. Clearly you need a less
> malleable and more brittle metal for drill bits; the metallurgy is
> important- carbon levels.
>

Every type of part you need has to have a different crucible.
Nuts, bolts, girders, beams, washers, rivets, fittings, casings,
pipes, hammers, wrenches, pliers, vices, grips, screws, nails,
sleeve bearings, ball bearings, hinges, rails, frames, doors,
panels, etc etc etc

Each of the types of parts come in a huge range opf size and shapes.

Each inidivudal part requires a special casting crucible and finishing
equipment.

An enormous investment any way you look at it.

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