Four day delivery? It took us two weeks to get a Vee shape line 40 inches
long ground (diamond wheel) into a piece of glass. Is the tempering process
so simple it can be done in a specialized glass shop?
Bill
----- Original Message -----
From: "Roger Gibbs" <rgibbs@pacbell.net>
To: "Dan Eiland" <deiland1@elp.rr.com>
Cc: "Tiger List" <tigers@autox.team.net>; "Jensen List"
<jensen-cars@british-steel.org>; "Alpine List" <alpines@autox.team.net>
Sent: Saturday, August 30, 2003 9:13 PM
Subject: Re: Drilling hole in tempered glass?
> I know of only one person who has tried to drill a hole in tempered
> glass.
>
> He used a wood dowel or w piece of tubing (I forget which) in a drill
> press. Made a dam of clay to hold a cutting lubricant and used an
> abrasive paste for the actual cutting/abrading. Just as the hole was
> almost finished ... BAM - the glass shatters in a million pieces.
>
> He figured he did something wrong and repeated it again, only this time
> slower .... BAM a million pieces.
>
> On the other hand I recently ordered a piece of tempered glass with a
> hole cut in it. The local glass shop ordered for me and delivered it
> four days later. I did not ask if the hole was cut before or after
> tempering. But a local glass shop may be able to give you some info.
>
> As I recall, the safety aspect of tempered glass is derived by
> pre-stressing the glass so that if it breaks it breaks into pebble
> sized pieces. These stresses do not allow drilling or cutting tempered
> galss.
>
> -Roger
> On Friday, August 29, 2003, at 07:20 PM, Dan Eiland wrote:
>
> > Hi Listers,
> >
> > Is it possible to drill a hole through tempered glass without damaging
> > the
> > glass? I have been told by two local firms that it is not possible,
> > but a
> > company in the UK says they know people who have done it but they do
> > not
> > know how. I have seen some diamond blade hole saws made for drilling
> > through
> > glass. If I used lots of water or cutting oil do you think it would be
> > possible to drill two 1/2" holes through my door glass without
> > exploding the
> > glass into a million pieces? The alternative is to remove some spot
> > welds
> > holding the "C" channel onto the bottom of my existing door glass so I
> > can
> > weld on the "C" channel that was mounted to the bottom of the glass
> > from my
> > new doors. If you are wondering what I am doing that requires this
> > conversion, I am switching my JH doors for GT doors. The glass is
> > almost the
> > same but there are just enough differences that I need to adapt my JH
> > windows to fit the GT doors. I am hoping some of my friends between the
> > three lists will be able to give me enough information to at least
> > keep me
> > out of trouble, and if I am lucky I will find a way to make this all
> > work.
> > Thanks in advance for any comments.
> >
> > Dan Eiland
|