Re: [ATM] Glass cutting speed

[Dave Smith <smithersscope@yahoo.com>]

Hi Richard,
That's serious cutting! I realize your diameter is
much smaller and should therefore cut quicker. But in
the back of my mind I'm wondering just how >hot< did
your glass/tool combo get at that speed? Was it
completely submerged?

Castelate? Cool! Always good to learn new stuff!
DD

--- Richard <cnc@cncservo.co.uk> wrote:

> Hi Dave,
> 
> Friday, March 24, 2006, 3:58:08 PM, you wrote:
> 
> DS> If at all possible, you want to put (cut? file?)
> DS> notches in your metal band to allow the grit and
> water
> DS> to drop down into the groove in the glass and
> stay in
> DS> constant contact between glass and cutting tool
> 
> I'd say Castelate, but maybe that's an English word
> ;)
> 
> I just cut through 1-1/4" thick Zerodur at 2-1/2"
> diameter at
> 250RPM and it took about 7 or 8 minutes. I wasn't as
> careful as
> I should have been breaking out the other side, but
> it was just
> a trial... I would doubly echo your warning on
> breaking through
> carefully, and even cut from both sides if possible,
> although
> you may get a slight step at the join. Plenty of
> water - both
> for lubrication and to keep the dust down.
> 
> Double sided tape works well, both for holding a
> water container
> to a pillar drill table and for holding the blank to
> the bottom
> of the container. Suitable containers may be found
> in the
> kitchen, but use stealth or ask permission from
> SWMBO first...
> 
> -- 
> 
> Best regards,
>   Richard in the UK
> 
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> ATM mailing list http://www.atmlist.net/
> 


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