We have a chip in the rim of a crystal glass. I have tried emery to smooth
it - but really it needs the whole of the rim grinding down by about 2 mm.
Should this be possible? Will it be satisfactory as it seems tha the rim is
moulded rather than cut?

Any advice on sourcing a repair if advised?

On Tuesday, 1 January 2019 13:53:04 UTC, DerbyBorn wrote:
We have a chip in the rim of a crystal glass. I have tried emery to smooth
it - but really it needs the whole of the rim grinding down by about 2 mm.
Should this be possible? Will it be satisfactory as it seems tha the rim is
moulded rather than cut?

Any advice on sourcing a repair if advised?

Angle grinder, diamond disk.
I saw someone cut a glass jam jar by immersing most of it in water to damp out vibrations that would otherwise cause it to shatter.

On Tue, 01 Jan 2019 13:53:02 +0000, DerbyBorn wrote:

We have a chip in the rim of a crystal glass. I have tried emery to
smooth it - but really it needs the whole of the rim grinding down by
about 2 mm. Should this be possible? Will it be satisfactory as it seems
tha the rim is moulded rather than cut?

If it's moulded rather than cut why not just bin it? It's not worth
trying to fix.



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"DerbyBorn" wrote in message
2.236...
We have a chip in the rim of a crystal glass. I have tried emery to smooth
it - but really it needs the whole of the rim grinding down by about 2 mm.
Should this be possible? Will it be satisfactory as it seems tha the rim
is
moulded rather than cut?

Not moulded so much as partially melted as
the glass was made from the blob of crystal.

Any advice on sourcing a repair if advised?

Not fixable IMO.

On Tue, 01 Jan 2019 17:16:26 +0000, Chris Hogg wrote:

You could grind it, but I'd do it by hand: get a flat sheet of glass,
use some fairly coarse carborundum grit (say -80s or -120s) scattered
fairly generously on the glass, wet it to make a paste, invert the
crystal whatever-it-is and grind away using a circular motion. It'll
be slow; you'll probably need to change the grit to finer grades as
you get down to below the edge of the chip, and the ground surface
will always be matt, never the original flame-polished edge it was.

Wot e said, only I'd use wet-or-dry paper, on a sheet of glass, lots of water.

Start coarse, maybe 120? Low pressure, too.


Thomas Prufer

Thomas Prufer wrote:
On Tue, 01 Jan 2019 17:16:26 +0000, Chris Hogg wrote:

You could grind it, but I'd do it by hand: get a flat sheet of glass,
use some fairly coarse carborundum grit (say -80s or -120s) scattered
fairly generously on the glass, wet it to make a paste, invert the
crystal whatever-it-is and grind away using a circular motion.

Wot e said, only I'd use wet-or-dry paper, on a sheet of glass, lots of water.

Shouldnt it be glasspaper?

Ill get my coat

GH

On 2019-01-01 1:30 p.m., Marland wrote:
Thomas Prufer wrote:
On Tue, 01 Jan 2019 17:16:26 +0000, Chris Hogg wrote:

You could grind it, but I'd do it by hand: get a flat sheet of glass,
use some fairly coarse carborundum grit (say -80s or -120s) scattered
fairly generously on the glass, wet it to make a paste, invert the
crystal whatever-it-is and grind away using a circular motion.

Wot e said, only I'd use wet-or-dry paper, on a sheet of glass, lots of water.

Shouldnt it be glasspaper?

Ill get my coat

GH

either or both will work

On Tuesday, 1 January 2019 13:53:04 UTC, DerbyBorn wrote:
We have a chip in the rim of a crystal glass. I have tried emery to smooth
it - but really it needs the whole of the rim grinding down by about 2 mm.
Should this be possible? Will it be satisfactory as it seems tha the rim is
moulded rather than cut?

Any advice on sourcing a repair if advised?

When I tried to cut glass goods on an abrasive disc tile cutter they always shattered. I presume the abrasive was too coarse. I was certainly being gentle.


NT

I was just thinking the same. I've certainly never heard of anyone
successfully repairing or grinding down something like this.
If it chipped it will chip again, points to naff crystal in the first
place.
Brian

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"Cursitor Doom" wrote in message
...
On Tue, 01 Jan 2019 13:53:02 +0000, DerbyBorn wrote:

We have a chip in the rim of a crystal glass. I have tried emery to
smooth it - but really it needs the whole of the rim grinding down by
about 2 mm. Should this be possible? Will it be satisfactory as it seems
tha the rim is moulded rather than cut?

If it's moulded rather than cut why not just bin it? It's not worth
trying to fix.



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the Usenet protocol. Reproduction in whole or part through other
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No the inside is often at a different tension which is why one chip leads
to more and more.
Horrible stuff if damaged. If it was part of a set, if you know the
company they might be able to sell you a replacement.
Brian

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"dkol" wrote in message
...


"DerbyBorn" wrote in message
2.236...
We have a chip in the rim of a crystal glass. I have tried emery to
smooth
it - but really it needs the whole of the rim grinding down by about 2
mm.
Should this be possible? Will it be satisfactory as it seems tha the rim
is
moulded rather than cut?

Not moulded so much as partially melted as
the glass was made from the blob of crystal.

Any advice on sourcing a repair if advised?

Not fixable IMO.

Cursitor Doom wrote in news:q0g4ur$e9a$3@dont-
email.me:

On Tue, 01 Jan 2019 13:53:02 +0000, DerbyBorn wrote:

We have a chip in the rim of a crystal glass. I have tried emery to
smooth it - but really it needs the whole of the rim grinding down by
about 2 mm. Should this be possible? Will it be satisfactory as it seems
tha the rim is moulded rather than cut?

If it's moulded rather than cut why not just bin it? It's not worth
trying to fix.




Ah - I suspect "Flame Polished" is a description of the rim.

On Wed, 02 Jan 2019 10:15:00 +0000, DerbyBorn wrote:

Ah - I suspect "Flame Polished" is a description of the rim.

If the OP is serious about repairing this glass then the last step will
be to run a flame around the rim to blunten the sharp edge.



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Leave first - THEN negotiate!

Chris Hogg wrote in
:

https://tinyurl.com/yc4nkcrv

Thanks - beyond me!

In article 6,
DerbyBorn writes:
We have a chip in the rim of a crystal glass. I have tried emery to smooth
it - but really it needs the whole of the rim grinding down by about 2 mm.
Should this be possible? Will it be satisfactory as it seems tha the rim is
moulded rather than cut?

Any advice on sourcing a repair if advised?

When I was at university, we had a bloke in the basement who made all
the special glass apparatus, discharge lamps, etc required for the
physics experiments. Every few years, he did a public demo showing how
different things were made, and that was something not to be missed -
he was amazing. I got to make a small discharge tube in the glass
workshop.

Apparently, a few members of staff regularly brought in wine glasses
to have chips taken out. He did it, but commented on the poor quality
of the glasses and that if they were good quality, they wouldn't chip
so easily.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

DerbyBorn explained :
Chris Hogg wrote in
:

https://tinyurl.com/yc4nkcrv

Thanks - beyond me!

I have seen it done in a glass factory, making fancy drinking glasses
amongst mass produced items like milk bottles, beer bottles and cheap
molded drinking glasses. For the fancy hand made ones, they had them on
an automatic process, a powered revolving table and a small gas flame
would come in for just a few seconds on the rotating rim. The cooling
glasses would then move along on a conveyor.

In my teens I would cut, bend join and carry out the above process on
glass tube for chemistry experiments. It was quite a satisfying
process, I remember.

If it is chipped, you probably have nothing to loose in trying, or take
it to a neon sign maker, to see if they could do it.