[ATM] High Speed grinding with a pottery wheel...???

["Brent Russell" <brussel@bpc.org.za>]

Hi Folks,
 
Some weeks ago a my wife bought a pottery wheel that uses a simple
mechanical drive to achieve a variable speed turntable. Upon seeing this
I though 'brilliant just what I need' and I have proceeded to grind a
small 6" cass on it much to my wife's disdain.
 
However the results seem pretty astounding.
 
I rough ground by hand but did 150, 320 and 600 on the table. Speed at
very slow at first to get good grit spread and then a zoom up to about
approx 80-120 RPM until the grit is worn out. I am working both TOT and
MOT and it works so fast it is incredible. I am using a tile tool and
last night did 320 Sic and 600 SiC in 35 minutes total...WOW 
 
Has anyone else tried this? is there something that I may only pick up
later as I get to polishing that may be bad about doing this? I have
been careful to keep strokes and speed random and the surface looks
great so I see no problems.
 
Brent
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