Re: [ATM] re: Cutting 3/4" Plate glass

[Pete <lenses@adelphia.net>]

Hi Bill,
Couple of choices,
Score it on only 1 side with a GOOD glass cutter, then use a cold chisel 
to give it a good wack under the score.
The next one assume you have a machine shop (lathe will do).
You can buy from National Diamond band saw blade that is diamond in very 
coarse grit.(40 grit is what I used)
Make a holder that will chuck up into a drill press that will accept the 
band saw blade, I have made large core drills this way.
Use a couple of dowel pins to keep the blade in place and with the right 
curvature on the blade you make an inexpensive core drill.
If I remember they sell the blade by the foot for around $15.00, my 6" 
core drill I made cost around $30.00 (my labor is free of course)
Hope this helps,
Pete

Bill Marriott wrote:

> Hello folks,
>
> I went down to the local glass and sash place today to try to find 
> some 5/8s-3/4" plate glass scraps to make a couple of grinding tools, 
> 6" and 8".
>
> I ended up with a 37" square piece 3/4" thick.  For $21.16
>
> Now, I was hoping that I could cut off a 10" piece, by just scoring 
> both sides with a glass cutter, put the line over the ball end of the 
> glass cutter, and snap it off, like I do with 1/4" float glass.
>
> No luck, not even with tapping the score line with the ball end.  If 
> it was smaller, I could cut it in the big 24" slab saw I have at work, 
> but not the 37" piece.
>
> I would be very interested in how others have dealt with cutting plate 
> glass this thick.
>
> And of course the question ia already there of;
>
> "Just how big of a stable  mirror could one fabricate out of this glass"
>
> All comments greatly appreciated.
>
> Regards
>
> Bill Marriott
> Woodacre, Ca.
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> ATM mailing list http://www.atmlist.net/
>

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