Derek; Please don’t feel you need to apologize for a contribution
like the one you posted in the April 25th Digest. I doubt there are
any on this list who would be bored by your discussion. There are
many like myself who know nothing about stone cutting but who find
threads dealing with the subject very informative. This is also true
for threads dealing with other specialized areas of knowledge, such
as Cad, Art-CAM, Rhino, etc. I have no intention of getting involved
with any of these areas, but discussions dealing with them are of
considerable value in expanding my understanding of the arts involved
in the wide and wondrous field of “Jewelry”.
"Marlinespike Seamanship in Precious Metals"