My guess is that cut, squeeze, silver solder, form to round again on the
tapered arbor. I lost so much weight after I got married that I had to
have my ring resized. Didn't cost too much, even for a starving student.
On 11/18/19 2:42 AM, andy pugh wrote:
On Mon, 18 Nov 2019 at 03:52, Gene Heskett <[email protected]> wrote:
I suggested that the jewelers usually have an expandable tapered arbor,
and a collet of sorts that can adjust a ring, cold, by about a size,
more if heated.
https://www.cooksongold.com/blog/equipment-technique-focus/how-to-resize-a-ring
But what about my ER42 kit? It ought to be able to do this compression to
restore a decent fit, or would I wreck the ER42's ball bearing nut
trying to put that much squeeze on the ring?
I think it would work, but might alter the profile.
I think a better way would be to machine the required half-profile of
the new size into a piece of bar on the lathe, then push the ring in,
flip and repeat, like the commercial ring shrinking tools.
But, then, I doubt that a jeweller would charge much for the service.
(My sister is a jeweller, I have asked here whether she would squeeze
or cut-and-shut. But as she is in the UK she is no help to you)
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