Christine Laginess on sat 13 nov 99
I purchase an all purpose grinder this week at a local store. Before i open
it and start using it i thought i would ask this question of the group. Is
this type of bench grinder effective in grinding glaze drips and is the all
purpose grinding wheel that comes with it powerful enough to do the job? If
not please make suggestions as a good alternative.
Thanks again for all the help you have been for me
Christine
chris1clay@aol.com
Lorraine Pierce on mon 15 nov 99
Christine, I have a special Green wheel that I purchased for my grinder. It is
made especially to grind ceramics; I also bought a flapper wheel (very
expensive..about $50-60 ) but they last a very long time and the bottoms of your
pots will be satin smooth after this wheel is used. I ordered mine through a
local machinists'supply company. Hope this helps...don't know about the usual
wheel that comes with the bench grinder, but think its' use would be limited.
Lori in New Port Richey Fl.
Christine Laginess wrote:
> ----------------------------Original message----------------------------
> I purchase an all purpose grinder this week at a local store. Before i open
> it and start using it i thought i would ask this question of the group. Is
> this type of bench grinder effective in grinding glaze drips and is the all
> purpose grinding wheel that comes with it powerful enough to do the job? If
> not please make suggestions as a good alternative.
>
> Thanks again for all the help you have been for me
> Christine
> chris1clay@aol.com
Ray Aldridge on mon 15 nov 99
At 11:44 PM 11/13/99 EST, you wrote:
>----------------------------Original message----------------------------
>I purchase an all purpose grinder this week at a local store. Before i open
>it and start using it i thought i would ask this question of the group. Is
>this type of bench grinder effective in grinding glaze drips and is the all
>purpose grinding wheel that comes with it powerful enough to do the job? If
>not please make suggestions as a good alternative.
>
You might want to think about adding a home-made water drip to the grinder,
so that you're grinding with a wet wheel. This will make the process safer
for both you and your pots, by cutting down on the dust and by preventing
the pots from cracking due to localized friction heat. If you know an
oldtime rockhound, he or she might be able to help you rig something
inexpensive.
Ray
Aldridge Porcelain and Stoneware
http://www.goodpots.com
Cindy Strnad, Earthen Vessels Pottery on mon 15 nov 99
Christine,
I use an angle grinder, which is a hand-held tool, with a masonry disk. I
would expect a bench grinder would work as well, as long as you can get a
suitable stone to do the grinding.
Cindy Strnad
Earthen Vessels Pottery
Custer, SD
Bill Campbell on tue 16 nov 99
The biggest problem with grinding pots is the dust. Breath it and it can ruin
your health. Protect yourself!
Dry grinders create a lot of heat when grinding pots. They can cause so much
heat that it will crack the pot. There are a lot of ways to do your grinding.
I solved my grinding problem by getting a belt sander that is used in the
glass industry. It has a constant water spray. Excellent results, but a bit
expensive. The ground area will be as smooth as the glaze.
Be careful dry grinding and when you are cleaning your shop after you do your
grinding. You do not recover from silicosis.
Bill
Vince Pitelka on wed 17 nov 99
>>I purchase an all purpose grinder this week at a local store. Before i open
>>it and start using it i thought i would ask this question of the group. Is
>>this type of bench grinder effective in grinding glaze drips and is the all
>>purpose grinding wheel that comes with it powerful enough to do the job? If
>>not please make suggestions as a good alternative.
Yes, the standard bench-grinder stone will work fine for grinding ceramics.
Make sure you do not allow the pot to get too hot in one place. It may help
to have a bucket of water handy, dip the area where you are grinding in the
water periodically to keep it from overheating and cracking.
For the other end of your bench-grinder I suggest you get an abrasive
flap-wheel - available from Grainger's Supply for about $16. The standard
grinding wheel will leave a coarsely-ground surface, which is a defect. But
the abrasive flap wheel will do a nice job of polishing the ground area.
And an abrasive flap wheel will give you the smoothest bottoms - very nice
to the touch.
Whether using the grindstone or the flap wheel, make sure to wear proper eye
protection and a proper dust mask.
Good luck -
- Vince
Vince Pitelka
Home - vpitelka@DeKalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Steve Yahn on thu 18 nov 99
Success with grinding wheels depends a lot on keeping the wheel dressed. As
a grinding wheel is made of tiny grits you should realize that each one gets
dull. The ones on the surface. To dress the wheel you can buy a wheel
dresser. Some designs look like a bunch of cowboys spurs on a pin mounted to
the end of a metal handel.
Also there is my favorite. The diamond. These are black industrial diamonds
sold mounted on a steel pin. They are surprisingly cheap. $15 to $80,depending.
There is a serious danger to using a grinding wheel which is not kept
dressed. The outer face gets very hot from lots of rubbing friction when the
grits are dull. The inside of the wheel is still cool. The expansion of the
wheel in such a manor leads to breakage and you know what. Keeping wheel
dressed also keeps your pot cooler and cuts faster. I know these things from
my day job as a machinist. I have never ground pottery but I'm positive the
principals are universal. By the way, Silicon carbide grinding wheels are
harder and more wear resisting than Aluminum oxide wheels,in gerneral.
This is a pet peev of mine. Amatures who dont have a clue about grinding
wheels and use glazed over wheels from non-dressing. It drives me nuts! I
feel better now.
Wishing all safe grinding,Steve Yahn
At 10:25 AM 11/17/99 EST, you wrote:
>----------------------------Original message----------------------------
>>>I purchase an all purpose grinder this week at a local store. Before i open
>>>it and start using it i thought i would ask this question of the group. Is
>>>this type of bench grinder effective in grinding glaze drips and is the all
>>>purpose grinding wheel that comes with it powerful enough to do the job? If
>>>not please make suggestions as a good alternative.
>
>Yes, the standard bench-grinder stone will work fine for grinding ceramics.
>Make sure you do not allow the pot to get too hot in one place. It may help
>to have a bucket of water handy, dip the area where you are grinding in the
>water periodically to keep it from overheating and cracking.
>
>For the other end of your bench-grinder I suggest you get an abrasive
>flap-wheel - available from Grainger's Supply for about $16. The standard
>grinding wheel will leave a coarsely-ground surface, which is a defect. But
>the abrasive flap wheel will do a nice job of polishing the ground area.
>And an abrasive flap wheel will give you the smoothest bottoms - very nice
>to the touch.
>
>Whether using the grindstone or the flap wheel, make sure to wear proper eye
>protection and a proper dust mask.
>Good luck -
>- Vince
>
>Vince Pitelka
>Home - vpitelka@DeKalb.net
>615/597-5376
>Work - wpitelka@tntech.edu
>615/597-6801 ext. 111, fax 615/597-6803
>Appalachian Center for Crafts
>Tennessee Technological University
>1560 Craft Center Drive, Smithville TN 37166
>
>
Bob Hanlin on thu 18 nov 99
I use a flap wheel and also bought a "green wheel". Its a green grinding
wheel that does a super job of grindng those glaze drips and those places
where you set a pot down on a place where you thought that the glaze was
ground off and find out that it wasn't and you get a bit on thebottom of a
pot. It was expensive but boy does it to the job. I got mine a one of
those wholesale tool places. I think it's not nation wide anyway it's
called Steves Wholesale Tools. I live in Oklahoma City.
Bobh
-----Original Message-----
From: Vince Pitelka
To: CLAYART@LSV.UKY.EDU
Date: Wednesday, November 17, 1999 3:26 PM
Subject: Re: Grinders for glaze drips
----------------------------Original message----------------------------
>>I purchase an all purpose grinder this week at a local store. Before i
open
>>it and start using it i thought i would ask this question of the group.
Is
>>this type of bench grinder effective in grinding glaze drips and is the
all
>>purpose grinding wheel that comes with it powerful enough to do the job?
If
>>not please make suggestions as a good alternative.
Yes, the standard bench-grinder stone will work fine for grinding ceramics.
Make sure you do not allow the pot to get too hot in one place. It may help
to have a bucket of water handy, dip the area where you are grinding in the
water periodically to keep it from overheating and cracking.
For the other end of your bench-grinder I suggest you get an abrasive
flap-wheel - available from Grainger's Supply for about $16. The standard
grinding wheel will leave a coarsely-ground surface, which is a defect. But
the abrasive flap wheel will do a nice job of polishing the ground area.
And an abrasive flap wheel will give you the smoothest bottoms - very nice
to the touch.
Whether using the grindstone or the flap wheel, make sure to wear proper eye
protection and a proper dust mask.
Good luck -
- Vince
Vince Pitelka
Home - vpitelka@DeKalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
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