Another question for the lapidarians among us
 

I just saw in the "cutting thin tiny glass parts" thread that there seems to
be a few lapidarians here. So I have another question:

I have a glass lid for a kitchen baking pan that has a flaked chip on one
edge, and I'd like to figure out a way to smooth it so that my wife wouldn't
have to throw it out. I thought I'd take a Dremel tool and some suitable
abrasive and smooth it and then try to polish it a bit. What kind of
abrasive would be good for that?

Tom

Another question for the lapidarians among us
 

"tdacon" wrote in message
...
I just saw in the "cutting thin tiny glass parts" thread that there
seems to be a few lapidarians here. So I have another question:

I have a glass lid for a kitchen baking pan that has a flaked chip
on one edge, and I'd like to figure out a way to smooth it so that
my wife wouldn't have to throw it out. I thought I'd take a Dremel
tool and some suitable abrasive and smooth it and then try to polish
it a bit. What kind of abrasive would be good for that?

Tom


Black sandpaper.

Another question for the lapidarians among us
 

In article , tdacon
wrote:

I just saw in the "cutting thin tiny glass parts" thread that there seems to
be a few lapidarians here. So I have another question:

I have a glass lid for a kitchen baking pan that has a flaked chip on one
edge, and I'd like to figure out a way to smooth it so that my wife wouldn't
have to throw it out. I thought I'd take a Dremel tool and some suitable
abrasive and smooth it and then try to polish it a bit. What kind of
abrasive would be good for that?

Diamond files from Harbor Freight.

Wet-dry (black) sandpaper on a dowel also works.

Joe Gwinn

Another question for the lapidarians among us
 

On Fri, 12 Jun 2015 08:55:13 -0700, "tdacon"
wrote:

I just saw in the "cutting thin tiny glass parts" thread that there seems to
be a few lapidarians here. So I have another question:

I have a glass lid for a kitchen baking pan that has a flaked chip on one
edge, and I'd like to figure out a way to smooth it so that my wife wouldn't
have to throw it out. I thought I'd take a Dremel tool and some suitable
abrasive and smooth it and then try to polish it a bit. What kind of
abrasive would be good for that?

Tom
Just get a piece of wet or dry 600 grit sandpaper and use that. You
could start with something coarser but then you would need to buy more
sheets. Wrap some around a pencil or pen, wet the stuff, and sand
away. With the dremel you could use a diamond point but the cheap ones
are usually pretty coarse and may cause more chipping. A good diamond
point would be fine. Don't get the glass hot. I know, it's a baking
pan that can withstand lots of heat, but it is just good practice for
when you are doing this on some other more friable glass. I use water
running across the work when I use high speed tools and diamond points
on glass. You can also use rubberized abrasive points, Cratex being
the most common brand name. Use light pressure, don't crowd the work.
A couple weeks ago I cut several curved surface discs, about .750
diameter and .030 thick, from a black light light bulb. I used a
diamond abrasive charged bronze cylinder to do the work. In this case
I used light oil, kerosene really, as the lubricant because the
diamond paste I used is oil soluble. I got three good parts out of 4
tries.
Eric

Another question for the lapidarians among us
 

On Fri, 12 Jun 2015 12:39:19 -0400, "Jim Wilkins"
wrote:

"tdacon" wrote in message
...
I just saw in the "cutting thin tiny glass parts" thread that there
seems to be a few lapidarians here. So I have another question:

I have a glass lid for a kitchen baking pan that has a flaked chip
on one edge, and I'd like to figure out a way to smooth it so that
my wife wouldn't have to throw it out. I thought I'd take a Dremel
tool and some suitable abrasive and smooth it and then try to polish
it a bit. What kind of abrasive would be good for that?

Tom


Black sandpaper.

+1. I'd avoid the dremel or other hard bits with glass. It likes to
shatter pretty easily and a hard stone could hit just the right freq
to shatter it.

Chuck a 3/8 dowel in your VSR with wod sandpaper on it. Quick fix.

--
The beauty of the 2nd Amendment is that it will not be needed
until they try to take it. --Thomas Jefferson

Another question for the lapidarians among us
 

Well if you want to lap something I'd use some diamond knife sharpeners
sold at Harbor Freight. I'd try some before you buy a bunch. Low cost.

A good water based oil is best - Or do it under water with the lap.

I cut and faceted sapphire 50 years ago - well maybe 49.

Martin

On 6/12/2015 12:47 PM, wrote:
On Fri, 12 Jun 2015 08:55:13 -0700, "tdacon"
wrote:

I just saw in the "cutting thin tiny glass parts" thread that there seems to
be a few lapidarians here. So I have another question:

I have a glass lid for a kitchen baking pan that has a flaked chip on one
edge, and I'd like to figure out a way to smooth it so that my wife wouldn't
have to throw it out. I thought I'd take a Dremel tool and some suitable
abrasive and smooth it and then try to polish it a bit. What kind of
abrasive would be good for that?

Tom
Just get a piece of wet or dry 600 grit sandpaper and use that. You
could start with something coarser but then you would need to buy more
sheets. Wrap some around a pencil or pen, wet the stuff, and sand
away. With the dremel you could use a diamond point but the cheap ones
are usually pretty coarse and may cause more chipping. A good diamond
point would be fine. Don't get the glass hot. I know, it's a baking
pan that can withstand lots of heat, but it is just good practice for
when you are doing this on some other more friable glass. I use water
running across the work when I use high speed tools and diamond points
on glass. You can also use rubberized abrasive points, Cratex being
the most common brand name. Use light pressure, don't crowd the work.
A couple weeks ago I cut several curved surface discs, about .750
diameter and .030 thick, from a black light light bulb. I used a
diamond abrasive charged bronze cylinder to do the work. In this case
I used light oil, kerosene really, as the lubricant because the
diamond paste I used is oil soluble. I got three good parts out of 4
tries.
Eric

Another question for the lapidarians among us
 

Wow, great responses. Thanks for your help.

Tom