I have been following (and a member) of this community since I began taking jewellery and goldsmithing classes in 2019. I was looking for information about the following but couldn’t find it, though I’m sure it must be here.
The first is about calculating the ratio of grams between fine gold and silver. I have a Hans Meevis ingot mould which I used the other day for the first time and it was wonderful. I had watched Andrew Berry’s video. He said the measures on the mould are for increments of grams in silver and that to cast a gold ingot would require calculating the difference? How would I do that and is it necessary?
My next question was about drawing down wire. I have drawn down a fine silver ingot to 20ga in my Durston mill. I need 22ga and could get it to that in the mill but I want round wire and much longer. Should I stop now and use a draw plate; or if I continue with the mill to 22ga will a draw plate stretch and round without thinning? (I think the answer is “no, it will also thin,” but want to check).
My last question is about a term used in posts I read–“flashing” when drawing down wire. I tried looking it up but without success. What does this mean.
Thank you for all the wonderful posts. I learn so much here.