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A means for goldsmiths for molding hollow



They mold in two cuttlefish bones their animal
or other work that they have either already made, or modelled in
wax & cast in lead. Since it is well imprinted in the
two cuttlefish bones, they place between these
two bones a paper, & join the
bones & cast. The work comes out split in half. And
then, with ch a chaple, they
hollow out as finely as they please the two halves cast in gold
or silver, and then solder or braze them.


Rouge cler



Some goldsmiths assay it on thinly beaten
esp gold & that is well burnished with a
chaple. But it is better to assay it on a gold
ingot. And also assay your substances in large or fantastical work,
since if they appear good & extraordinary in large work, they will
show excellently on a common work.


Cleaning and degreasing your works cast from tin and
others

Make some lye, carefully passed through good ashes,
and since it is recent & not fatty, boil your molded work in it. And
the tallow and fat leaves it.


Arranging plants or flowers for casting



Always put on the top the principal side of the thing, because it comes
out better and neater than the bottom. Make the gate wide & that
there issupraplus (which is the
masse for founders) for a large gate,
Et especially for silver, which wants the
mold well hot & to be cast very hot. Very thin things want
to be cast very hot.


When you know that the stem of a flower, burned in a mold which
does not open, is reduced well into ashes, it is a sign that the
rest is well burned.


Flies

They mold better on a single leaf than n on a
bouquet or a flower or the branch of a plant, because the single leaf
molds in two halves, which, once reheated can open and clean well &
the cast is made better. Take heed when using the fly to not
break the legs & to not let it dry too much, for then the legs fall
off. And if this happens to you, glue with fish
glue the same legs and with wax, or fashion some out of
pork hair or spinet string. Fix the leaf
on the clay slab with two points, and the
fly with one point in the middle of the body, &
the legs with some wax.

