Is there a chart that indicates the length of metal I would
have to saw out for a particular ring size? And, should the length
be exact, or longer/shorter than denoted?
It’s maths up to a point. Calculate the circumference from the
diameter: it’s a formula. You could make up a spread sheet and show
each size in both dia and circumf.
But you must add a little extra for the physical effects of bending
a strip of metal to a ring shape. People differ in their ways of
calculating this, but a simple way would be to make the ring a
little too small and stretch it up.
Is there a chart that would enable me to figure out total
surface weight without actually weighing something? For example, a
1 x 1 inch of whatever gauge sterling silver always weighs X grams.
It’s also called density and specific gravity. Silver (fine) has a
density of (approx) 10.5 grams per cubic centimetre.
Silver = 10.5 g/cm3
Wax = 1 g/cm3 (approx)
So take a 1" cube of wax and weigh it. That SAME SIZE would weigh
10.5 times in silver.
Are there any pitfalls I need to avoid when making a
Yes. Make a little hole for the acid pickle to exit out of.
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