Earl Brunner on wed 6 aug 03
Automotive engine valve grinding compound is the greatest for smoothing
the bottoms of pots. I threw a porcelain plate, with a rim and fired to
maturity unglazed, I then squeeze out some valve grinding compound (it
is just very fine silicon carbide) add a little water and rotate the pot
around until smooth. This REALLY makes the bottoms smooth. When buying
it, it comes in either water or oil base, the water base is the easiest
to clean off of the pot when finished. It's also great for the galley
and edge of the lids. You can literally hear the change in smoothness
as you grind them together.
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Janet
Kaiser
Sent: Wednesday, August 06, 2003 7:38 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: The sins of the fathers... (was: K-Mart "culture" is good)
>Are people going to serve their latest dinner, on our plates,
served on a hand
>made table, made with mahogany, from the mountains in
Madegascar, not likely!
Out of context, but one reason why factory made, NOT hand-made
dinner ware is going to be used on expensive furniture... Past
experience may have informed them that hand-made could SCRATCH.
Before you all howl at me... Not every potter "out there" makes
sure that their bottoms are like-a-baby's-bottom-smooth! I check
every pot I sell and occasionally will have to grind off a
suspect sharp bit of either clay or glaze. Usually rubbing two
bottoms together will do the trick, but sometimes I have to use
hard pumice or a small piece of that stuff knife sharpeners are
made out of. If they are mislaid (can happen) I run out and use
the wall outside... Yes, I get queer looks, but hey! Artists can
do anything! :-)
Phil Smith on thu 7 aug 03
Yet another tool for removing rough edges. flapper wheel.
For those of you not familiar with the flapper wheel.
Pieces of sand paper loosely arranged around a hub.
Can be had in the form of large wheel for bench grinder or small shank
tool for hand drill or air motor. Does not remove excessive amounts of
material, rather polishes surfaces to satiny smootheness.
100-180 grit.
Wear your mask.
Phil...
Ron Roy on fri 8 aug 03
Best to do this sort of thing under water - spreading clay dust around your
studio is not a good idea - unless you decide to ware a proper mask all the
time.
I do it on my wheel - centre pot upside down - the Giffen gripp works just
fine - hold a sharpening stone against the food after adding a bit of
water - keep the stone soaked - easy to clean up - and you can actually
feel when it is done.
RR
>Yet another tool for removing rough edges. flapper wheel.
>For those of you not familiar with the flapper wheel.
>Pieces of sand paper loosely arranged around a hub.
>Can be had in the form of large wheel for bench grinder or small shank
>tool for hand drill or air motor. Does not remove excessive amounts of
>material, rather polishes surfaces to satiny smootheness.
>100-180 grit.
>Wear your mask.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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