Re: What on earth are these?
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I think it may be unknowable whether these were purchased for jewelry making or machinist inspection purposes. Again, ones that look identical are sold by machinery supply houses.? Refer to the MSC page below and scroll down past the shouldered ones.? And you will see unshouldered ones just like the original poster's photo.? Unless other jewelry making doo dads (and there are all sorts of cool stuff in that industry) associated with the lathe they may have been used for a usual machinist purpose.? On the other hand, the wide variety of sizes is a vote for jewelry making.? On the third hand, you could buy ones for jewelry making and use them for machinist inspection purposes, or on the fourth hand buy inspection tooling balls and use them for jewelry making. Charles E. "Chuck" Kinzer
On Tuesday, September 19, 2023 at 02:51:01 PM PDT, Davis Johnson <davis@...> wrote:
A third option would be the "dent balls" used by brass instrument
repair folks. They are forced thru a tube to push out dents. They
generally don't have the stem that these have, and are frequently
barrel shaped. On 9/19/23 13:25, Charles Kinzer wrote:
I guess these could be either
"tooling balls" or the devices for jewelry making.? Some of
them look identical in photos.? I suppose one difference might
be how accurately they are ground.? Being with a machine tool
suggests to me they are more likely to be tooling balls which
machinists use.
Charles E. "Chuck" Kinzer
On Tuesday, September 19, 2023 at 10:20:37 AM PDT,
Charles Kinzer <ckinzer@...> wrote:
I believe these are what are called
"Tooling Balls".? They are typically used in the
accurate positioning of work pieces.? The shank goes
into a hole and then the surface of the ball is used
as a reference.? Of course, actual position must be
offset based on the diameter of the ball used.? This
is similar to techniques using gauge pins, but the
ball shape allows more versatility, such as if
dealing with angles.
Charles E. "Chuck" Kinzer
On Tuesday, September 19, 2023 at 10:11:23 AM
PDT, Adrian Nicolson via groups.io
<adrian_nicolson@...> wrote:
Commonly known as Dapping or
Doming Punches...used predominately by the
jewellery trades and crafts
Regards,
Adrian
On Tuesday, 19 September 2023,
18:06:20 BST, Andrei
<calciu1@...> wrote:
That's exactly?what they are.
There is a piece missing, which is
the doming block (or blocks, in
most cases).?
A full new set at Harbor Freight
is less than 40 bucks. I would not
pay much for this incomplete set.?
From:
[email protected]
<[email protected]> on
behalf of Peter Brooks
<peter@...>
Sent: Tuesday, September 19, 2023 1:01 PM To: [email protected] <[email protected]> Subject: [Unimat] What on earth are these? ?
Looks like they could be for
beating metal to a dome shape¡ but
I have no idea. They were pictured
with a lathe so probably
metal-working related.
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