Re: ATM "Tubular" Grinding Tools

[Bratislav Curcic <epabcc@epa.ericsson.se>]

Dwight Elvey wrote 

>  use of steel pipes.
> Many have said it works well but tends to leave deep
> scratches that require more work to get out

> Part of the increased speed in removing glass is
> from this sawing action and part is because of the
> increased preasure per square area.

"Sawing action" is NOT what you want in hogging. Glass chipping
is the fastest way to remove large chunks. You either have FAST
grinding (i.e. "chipped" appearance) or nice looking surface that
takes long to form. There is no free luch - pick your choice.

BTW hogging with a glass jar is looking for trouble. If it shatters
while you lean on it, even with gloves on you may end up with couple
of fingers missing. And you're wasting grit and time in grinding the 
tool too.

Bratislav