How do you drill holes in glass?

I have some diamond drills and drill holes in to borosilicate glass (
round pipes ) but it takes an awful long time.
The holes have a diameter of 1.4 mm

Patatsukli wrote:

I have some diamond drills and drill holes in to borosilicate glass (
round pipes ) but it takes an awful long time.
The holes have a diameter of 1.4 mm

A long time. Years? Days? I could go through an 1/8" of boro in less
than a minute, probably a lot less. Is that a long time?

Keep the drill bit wet and go no faster than you can keep the tip wet. A
good quality bit also makes life easier. Tripple Ripple.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

nJb wrote:

Patatsukli wrote:


I have some diamond drills and drill holes in to borosilicate glass (
round pipes ) but it takes an awful long time.
The holes have a diameter of 1.4 mm



A long time. Years? Days? I could go through an 1/8" of boro in less
than a minute, probably a lot less. Is that a long time?

This is a very good time. I need to make 5 holes in every smoking pipe.


Keep the drill bit wet and go no faster than you can keep the tip wet. A
good quality bit also makes life easier. Tripple Ripple.

You use a handheld machine drill or fixed on the table?

Patatsukli wrote:

nJb wrote:

Patatsukli wrote:


I have some diamond drills and drill holes in to borosilicate
glass (
round pipes ) but it takes an awful long time.
The holes have a diameter of 1.4 mm


A long time. Years? Days? I could go through an 1/8" of boro in less
than a minute, probably a lot less. Is that a long time?

This is a very good time. I need to make 5 holes in every smoking
pipe.


Keep the drill bit wet and go no faster than you can keep the tip
wet. A
good quality bit also makes life easier. Tripple Ripple.

You use a handheld machine drill or fixed on the table?




I use a hand held Dremel, high speed. If you feed in a pulsing manner it
should go fine.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

As Jack said! Keep the drill bit wet (cold water) and use just enough pressure
to complete the task. Drill bit quality is VERY important. Unfortunately Taiwan
appears to be taking over the TOOL WORLD, so one must search for quality.
Diamond P P

Dymon P wrote:

As Jack said! Keep the drill bit wet (cold water) and use just enough pressure
to complete the task. Drill bit quality is VERY important. Unfortunately Taiwan
appears to be taking over the TOOL WORLD, so one must search for quality.
Diamond P P

Tripple Ripple drills work great at $5 each but I also do well with
Harbor Freight cheapo imports at 30 cents each. It's the technique.
--
Jack


http://photos.yahoo.com/bc/xmissionbobo/

Just a hint:

Since it is oil-based, polymer-clay makes an excellent dam for drilling.
That way you don't have to do an elaborate set-up when using a corded drill.
I just use a dremel and make an appropriately sized "O" of clay and adhere
it to the glass. Then I put a few drops of water in the "O" and drill the
hole. Not practical for things like beads, but great for pendants when you
want a front-to-back hole.


As Jack said! Keep the drill bit wet (cold water) and use just enough
pressure
to complete the task. Jack

Actually, I think it is plasticine clay that is oil based and makes a
great waterproof dam that sticks to glass nicely. Polyclay may work fine,
but the little I have used does not have the oil feel of the plastic clay
sold at grocery stores and so forth for years for kids to play with.

--
Mike Firth
Hot Glass Bits Furnace Working Website
http://users.ticnet.com/mikefirth/NTBowl.htm
Once again, Empty Bowls for the North Texas food banks will collect money
in February by charging for donated food and bowls at artsy events in Dallas
& Fort Worth. Check out your area if not near here, Empty Bowls was
originally and still is mostly a pottery project. All it takes is a box
stuffed with newspaper and one bowl a week to collect a dozen by then.
$23,000 raised last year.
"kelly" wrote in message
news:Um%hb.734216$YN5.655983@sccrnsc01...
Just a hint:

Since it is oil-based, polymer-clay makes an excellent dam for drilling.
That way you don't have to do an elaborate set-up when using a corded
drill.
I just use a dremel and make an appropriately sized "O" of clay and adhere
it to the glass. Then I put a few drops of water in the "O" and drill the
hole. Not practical for things like beads, but great for pendants when
you
want a front-to-back hole.


As Jack said! Keep the drill bit wet (cold water) and use just enough
pressure
to complete the task. Jack

Actually, I think it is plasticine clay that is oil based and makes a
great waterproof dam that sticks to glass nicely. Polyclay may work fine,
but the little I have used does not have the oil feel of the plastic clay
sold at grocery stores and so forth for years for kids to play with.


I think if you put polymer clay (especially Fimo and the other newer clays)
on any absorbent paper overnight, you would change your mind. You may be
thinking of PlayDough. Polymer clay is a recognized medium within the
creative arts world, and has been for many years. See the links below:

http://www.elvenwork.com/
http://www.lapidaryjournal.com/jj/index_clay.cfm

Incidentally, my own contribution is the 6th reprint image from the top in
the LD journal link above. I worked in PC for over ten years before
switching to glass, so I'm intimately familiar with the oil properties of
the clay.

Kelly Keniston
KellyK fused Beads and Pendants