Re: [ATM] Current "favorite" for hogging?

[Steve Beccue <lsteve@beccue.com>]

Jim,
I have a mirror machine, but find the fastest way is to do it by hand.
I start with a piece of metal (like a pipe flange) and finish with a
tile tool.   It seems that the machine is human work, but more elapsed.
I'm about to start a 14.6 quartz mirror, and I'll rough grind by hand,
fine grind and polish by machine, and figure by hand.

Steve Beccue
steve@beccue.com

On Sun, 29 Oct 2006, Jim McPherson wrote:

> I've read about every old email on hogging and would like to know what 
> the current
> favorite method of hogging out a mirror blank is. I've got a 14.5'' 
> blank that I want
> to get to F5 as efficiently as possible. So far I've seen:
> 
> Sandblasting
> Diamond blades on angle grinders
> Diamond blades on a steel can rim
> Diamond knife hones
> Steel can rims
> Gears
> Steel washers on plaster
> Nickels on plaster
> Tile tool
> Iron Flanges.
> 
> Is there any "congealment" on methods for fast hogging glass?
> 
> -Jim
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