I’ve been studying on the internet how to set stones with bezels,
and I can clearly see the advantage of using a hammer handpiece
rather than burnishers to smooth the metal over the stone.
On the other hand, I fully realize that setting up with a foredom
hammer handpiece requires about $500.
Since I am in bootstrap mode I would rather improvise an equivalent
effect rather than earn it. But the GOOD news is, I have a 4-axis
CNC tabletop mill, so I can (in theory) create a rotary bit for a
My question to you all is this: if I wanted to create a rotary bit
that would act as a hammer, what shape should the bit be?
It would seem that a swas (with apologies to Jewish people, since I
am Jewish myself, but I only know one word for the shape) stika,
centered on the shank of the bit, would provide a balanced set of 4
hammers to close the top of the bezel over the stone.
But classical physics is not my strong suit, and so I wonder if any
of you out there can think of a more ideal shape to create as a
rotary bit for this purpose.
Thanks in advance,
Andrew Jonathan Fine