chris massingill on mon 14 apr 08
I know that there has been quite a bit of discussion of flapwheels for smoothing the bottoms of pots, but I was wondering if anyone could recommend a dremel bit for polishing glaze drips that have been slightly ground down. I use a lot of sprigs on my work and like runny glazes that run and pool in all the right places and allow the texture to show through, but occasionally I have a large drip that needs to be ground (I use a bench grinder for this) and I need something that can remove the grinder marks and polish the glaze drips.
Thanks for your help
Chris Massingill
www.chrismassingill.com
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Larry Kruzan on mon 14 apr 08
I use a pneumatic die grinder fitted with a diamond bit for cleaning the
little spots and sharp edges. The bits are available in a kit of 50 pcs
from Harbor Freight Tools for $30. They also have a die grinder for about
the same price that works just fine. Do oil any air grinder with a couple
drops of oil each time you use it and it will last a long time.
I bought both at the same time three years ago and just bought a new bit set
when it was on sale for $15!
Larry Kruzan
Lost Creek Pottery
www.lostcreekpottery.com
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of chris
massingill
Sent: Monday, April 14, 2008 5:30 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: [CLAYART] dremel tool for glaze drips
I know that there has been quite a bit of discussion of flapwheels for
smoothing the bottoms of pots, but I was wondering if anyone could recommend
a dremel bit for polishing glaze drips that have been slightly ground down.
I use a lot of sprigs on my work and like runny glazes that run and pool in
all the right places and allow the texture to show through, but occasionally
I have a large drip that needs to be ground (I use a bench grinder for this)
and I need something that can remove the grinder marks and polish the glaze
drips.
Thanks for your help
Chris Massingill
www.chrismassingill.com
____________________________________________________________________________
________
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know-it-all with Yahoo! Mobile. Try it now.
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Vince Pitelka on tue 15 apr 08
James Freeman wrote:
"Unless I have to grind something really big, like a fluxed wad from the
salt
or wood kiln, I skip the bench grinder entirely and use two types of dremel
wheel obtained from a dental supply house. They are made for dental
handpieces, but they work just fine with dremels and other micro-die
grinders. The grinding stones sold in hardware stores for dremels tend to
be very friable and of very low quality.
For grinding, I use what is known as a "heatless" wheel. These are made
specifically for grinding porcelain and are used by dental technicians.
Don't let the "heatless" fool you; it means that the wheel doesn't get hot,
but the thing you are grinding still does.
To polish away the grinding marks I then use a Cratex wheel. Cratex is a
brand name, and there are several other makers of this type of wheel, which
is essentially very fine abrasive impregnated into a hard rubber base, kind
of like a pink pencil eraser. I use the hard grey-green ones, but YMMV.
The Cratex wheels will be eaten up very quickly if you use them on anything
very rough, so don't skip the heatless wheel after using the bench grinder.
If I want a mirror finish, I move on to a felt buff and porcelain polishing
paste, also available from the dental supply. Typically though, I just stop
after the Cratex wheel."
I love Clayart. See, I KNEW that if we were patient, someone would come up
with EXACTLY the right information. This is great. Thank you James -
- Vince
Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka@dtccom.net; wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka
chris massingill on tue 15 apr 08
Thanks for the info on the cratex wheel, I live in a smallish town so I ordered some online. When I did my internship the potter I worked with had a similar wheel, but when I asked what it was she told me silicon carbide, but when I went looking for a silicon carbide wheel the ones I came across weren't the texture I was looking for - but now I see that these have some silicon carbide imbedded in them so I'm hoping that these are exactly what I've been looking for.
Thanks!
Chris Massingill
www.chrismassingill.com
----- Original Message ----
From: Nobody Special
To: CLAYART@LSV.CERAMICS.ORG
Sent: Tuesday, April 15, 2008 8:00:24 AM
Subject: Re: dremel tool for glaze drips
On Mon, 14 Apr 2008 15:29:37 -0700, chris massingill
wrote:
>I know that there has been quite a bit of discussion of flapwheels for
smoothing the bottoms of pots, but I was wondering if anyone could recommend
a dremel bit for polishing glaze drips that have been slightly ground down.
---snip---
Chris...
Unless I have to grind something really big, like a fluxed wad from the salt
or wood kiln, I skip the bench grinder entirely and use two types of dremel
wheel obtained from a dental supply house. They are made for dental
handpieces, but they work just fine with dremels and other micro-die
grinders. The grinding stones sold in hardware stores for dremels tend to
be very friable and of very low quality.
For grinding, I use what is known as a "heatless" wheel. These are made
specifically for grinding porcelain and are used by dental technicians.
Don't let the "heatless" fool you; it means that the wheel doesn't get hot,
but the thing you are grinding still does.
To polish away the grinding marks I then use a Cratex wheel. Cratex is a
brand name, and there are several other makers of this type of wheel, which
is essentially very fine abrasive impregnated into a hard rubber base, kind
of like a pink pencil eraser. I use the hard grey-green ones, but YMMV.
The cratex wheels will be eaten up very quickly if you use them on anything
very rough, so don't skip the heatless wheel after using the bench grinder.
If I want a mirror finish, I move on to a felt buff and porcelain polishing
paste, also available from the dental supply. Typically though, I just stop
after the Cratex wheel.
Many big cities will have a dental supply house, or you can find several
online. Tell them what you are trying to do, and I am sure they can point
you to the right products.
Hope it helps.
...James
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Vince Pitelka on tue 15 apr 08
Larry Kruzan wrote:
"I use a pneumatic die grinder fitted with a diamond bit for cleaning the
little spots and sharp edges. The bits are available in a kit of 50 pcs
from Harbor Freight Tools for $30. They also have a die grinder for about
the same price that works just fine. Do oil any air grinder with a couple
drops of oil each time you use it and it will last a long time."
Larry -
Both of the devices you mention above are great, and illustrate the point
that a discerning buyer can actually find some worthwhile tools available
from Harbor Freight. You gotta know how to winnow out the junk, because
there is SO MUCH of it.
But I think that the original post was asking about how to eliminate the
grinding marks AFTER using a Dremel tool or die grinder with a small
abrasive tip. I am interested to know if anyone has found something that
will do this - some sort of polishing tip to fit a Dremel or die grinder. A
person could always use a little 1/8"-shank buffing wheel and the
appropriate buffing compounds, but that would be pretty tedious.
- Vince
Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka@dtccom.net; wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka
Bryan on tue 15 apr 08
Rog Coman wrote:
> Hi Chris,
>
> I also use my bench grinder to grind down glaze drips and then finish
> them
> with the Dremel diamond disk and then polish with the polishing bit
> (cotton)
> dipped in a polishing compound you can get where they sell Dremel
> supplies.
> While this does polish a bit, I have never been able to get a "finished
> look". Hope someone out there in Clayartland has a good solution for us.
> Hey Vince, got any good suggestions???
>
> Rog Coman
> Fish Hook Pottery
> Montrose, CO
After doing something similar,except I used a diamond polishing compound
in a variety of grades, I realized that the glaze is not always the
same on the surface and in the middle.
I was polishing a clear glaze and small bubbles made the polished
surface different than a fired surface.
Bryan Johnson
Rog Coman on tue 15 apr 08
Hi Chris,
I also use my bench grinder to grind down glaze drips and then finish them
with the Dremel diamond disk and then polish with the polishing bit (cotton)
dipped in a polishing compound you can get where they sell Dremel supplies.
While this does polish a bit, I have never been able to get a "finished
look". Hope someone out there in Clayartland has a good solution for us.
Hey Vince, got any good suggestions???
Rog Coman
Fish Hook Pottery
Montrose, CO
----- Original Message -----
From: "chris massingill"
To:
Sent: Monday, April 14, 2008 4:29 PM
Subject: dremel tool for glaze drips
>I know that there has been quite a bit of discussion of flapwheels for
>smoothing the bottoms of pots, but I was wondering if anyone could
>recommend a dremel bit for polishing glaze drips that have been slightly
>ground down. >
> > Chris Massingill
>
>
> >
>
>
>
>
> ____________________________________________________________________________________
> Be a better friend, newshound, and
> know-it-all with Yahoo! Mobile. Try it now.
> http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
>
> ______________________________________________________________________________
> Clayart members may send postings to: clayart@lsv.ceramics.org
>
> You may look at the archives for the list, post messages, change your
> subscription settings or unsubscribe/leave the list here:
> http://www.acers.org/cic/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots2@visi.com
Steve Mills on tue 15 apr 08
Chris,
I don't use any sort of grinding wheel or Flap Wheel for cleaning off glaze drips etc.
I use a Dremel 9935 Structured Tooth Tungsten Carbide Cutter (Ball) for all cleaning, grinding etc.
It copes with quite heavy stuff very efficiently, and if you stroke the surface with it you can get a really smooth finish.
Steve
Bath
UK
chris massingill wrote:
I know that there has been quite a bit of discussion of flapwheels for smoothing the bottoms of pots, but I was wondering if anyone could recommend a dremel bit for polishing glaze drips that have been slightly ground down. I use a lot of sprigs on my work and like runny glazes that run and pool in all the right places and allow the texture to show through, but occasionally I have a large drip that needs to be ground (I use a bench grinder for this) and I need something that can remove the grinder marks and polish the glaze drips.
Thanks for your help
Chris Massingill
www.chrismassingill.com
____________________________________________________________________________________
Be a better friend, newshound, and
know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
______________________________________________________________________________
Clayart members may send postings to: clayart@lsv.ceramics.org
You may look at the archives for the list, post messages, change your
subscription settings or unsubscribe/leave the list here: http://www.acers.org/cic/clayart/
Moderator of the list is Mel Jacobson who may be reached at melpots2@visi.com
between 0000-00-00 and 9999-99-99
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John Sankey on tue 15 apr 08
"I was wondering if anyone could recommend a dremel bit for polishing glaze
drips that
have been slightly ground down."
I use diamond bits from http://www.lopacki.com
They work very well and are inexpensive. Lopacki also carries diamond
'sandpaper' which you may find useful.
John Sankey
-------------
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filter.
I can only read text mail, no attachments.
Nobody Special on tue 15 apr 08
On Mon, 14 Apr 2008 15:29:37 -0700, chris massingill
wrote:
>I know that there has been quite a bit of discussion of flapwheels for
smoothing the bottoms of pots, but I was wondering if anyone could recommend
a dremel bit for polishing glaze drips that have been slightly ground down.
---snip---
Chris...
Unless I have to grind something really big, like a fluxed wad from the salt
or wood kiln, I skip the bench grinder entirely and use two types of dremel
wheel obtained from a dental supply house. They are made for dental
handpieces, but they work just fine with dremels and other micro-die
grinders. The grinding stones sold in hardware stores for dremels tend to
be very friable and of very low quality.
For grinding, I use what is known as a "heatless" wheel. These are made
specifically for grinding porcelain and are used by dental technicians.
Don't let the "heatless" fool you; it means that the wheel doesn't get hot,
but the thing you are grinding still does.
To polish away the grinding marks I then use a Cratex wheel. Cratex is a
brand name, and there are several other makers of this type of wheel, which
is essentially very fine abrasive impregnated into a hard rubber base, kind
of like a pink pencil eraser. I use the hard grey-green ones, but YMMV.
The cratex wheels will be eaten up very quickly if you use them on anything
very rough, so don't skip the heatless wheel after using the bench grinder.
If I want a mirror finish, I move on to a felt buff and porcelain polishing
paste, also available from the dental supply. Typically though, I just stop
after the Cratex wheel.
Many big cities will have a dental supply house, or you can find several
online. Tell them what you are trying to do, and I am sure they can point
you to the right products.
Hope it helps.
...James
William & Susan Schran User on thu 17 apr 08
On 4/15/08 9:26 PM, "Vince Pitelka" wrote:
> If I want a mirror finish, I move on to a felt buff and porcelain polishing
> paste, also available from the dental supply. Typically though, I just stop
> after the Cratex wheel."
Has anybody tried a silicon carbide polishing wheel made to fit Dremel
tools?
Here's a link to what I ask about:
bide>
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
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