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The enlargement process was carried out by casting a model of
the bull in plaster from the original maquette mould, and then
slicing it (like a loaf of bread). Each slice was measured and
calculations were made to enlarge each slice. The new dimensions
were projected onto sheets of polystyrene of the scaled-up thickness.
The outline of the image was marked out and the waste cut away.
The enlarged slices were then stuck together and shaped using
files. Layers of fibreglass, resin and plaster followed. The finer
details were added before the finished Bull was smoothed down
and polished, ready for sandcasting.
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