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Notes on the casting of the Sforza monument (710-715).
7
10.
Three braces which bind the mould.
[If you want to make simple casts quickly, make them in a box of
river sand wetted with vinegar.]
[
When you shall have made the mould upon the horse you must make the
thickness of the metal in clay.]
Observe in alloying how many hours are wanted for each
hundredweight. [In casting each one keep the furnace and its fire
well stopped up.] [Let the inside of all the moulds be wetted with
linseed oil or oil of turpentine, and then take a handful of
powdered borax and Greek pitch with aqua vitae, and pitch the mould
over outside so that being under ground the damp may not [damage
it?]
[
To manage the large mould make a model of the small mould, make a
small room in proportion.]
[Make the vents in the mould while it is on the horse.]
Hold the hoofs in the tongs, and cast them with fish glue. Weigh the
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