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Author Topic: Some wheel thrown Pottery  (Read 5156 times)

Bob_Danforth

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Some wheel thrown Pottery
« on: March 30, 2012, 12:52:49 AM »
If there are people who would like to learn and do some wheel thrown pottery I would also like to do and can teach of we can put together a group. I have a pottery wheel however that I can bring to the table and we can make more wheels. I also have some techniques that are highly mechanical and allow thing to be accomplished that would be very difficult otherwise.






claned

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Re: Some wheel thrown Pottery
« Reply #1 on: March 30, 2012, 08:55:37 AM »
Those are lovely pieces.  I am in awe of the talents of potters & my favorite mug and bowl are pieces I have purchased at art shows.


Earlier this year, I attended the Night of Fire event at Crealde and watched as they fired pieces in hay and sawdust with the traditional old metal trash cans.  To see them take a glowing piece out and plunge it into water after, then crackled finishes that result.  I would love to learn, but I would need to start with the very basics. Thank you for sharing the images and for offering to lead a group. 

Aberro

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Re: Some wheel thrown Pottery
« Reply #2 on: March 30, 2012, 05:25:51 PM »
Might I ask what glazes you used for those pieces? I like it
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darkmoonsinger

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Re: Some wheel thrown Pottery
« Reply #3 on: March 30, 2012, 08:20:33 PM »
I'd love to learn!

Catastrophic

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Re: Some wheel thrown Pottery
« Reply #4 on: April 05, 2012, 10:21:38 AM »
Count me in too!  Let's build some wheels!  And lets get the kiln working while we are at it!

Bob_Danforth

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Re: Some wheel thrown Pottery
« Reply #5 on: April 08, 2012, 01:32:37 AM »
I have a potters wheel that is just sitting here, I can bring it in but we will need at least a large electric pottery kiln. We could make a very high temp one with Silicon Carbide rods instead of Nichrome wire that is ok for for first fire but not so much for high fire. Many folk start with the Ceramics places and buy kilns and then get tired of them and would contribute them for a tax break to a 501c3 group.

Good also to keep an eye out for ceramic fiber as heat lost by radiation is big part of the costs.

Bob_Danforth

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Re: Some wheel thrown Pottery -glazes
« Reply #6 on: April 08, 2012, 01:55:20 AM »
In this sort of pottery the thrown texture was paramount so the glaze was very simple. The blue is a simple gersley borate glaze with a spot of Cobalt. Since cobalt will color at 1-50,000 mixture in glass/ceramic small is a very tiny amount.
The other was just a copper stain and fired in reduction to get that dark moonscape look.

paul

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Re: Some wheel thrown Pottery
« Reply #7 on: April 08, 2012, 05:35:25 PM »
If there are people who would like to learn and do some wheel thrown pottery I would also like to do and can teach of we can put together a group. I have a pottery wheel however that I can bring to the table and we can make more wheels. I also have some techniques that are highly mechanical and allow thing to be accomplished that would be very difficult otherwise.
My 8 yo daughter has taken a couple of clay classes and would be very interested in learning how to do wheel thrown pottery.  My son would be interested in learning how to make a pottery wheel as well.

Catastrophic

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Re: Some wheel thrown Pottery
« Reply #8 on: April 08, 2012, 07:47:03 PM »
Also, I know there is a kiln at the Lab.  I've been told it is currently non-functioning but have not taken a look at it myself.  They are fairly simple devices from what I understand, shouldn't be too hard to fix no matter what the issue is.  I'll put it on my list of things to try and accomplish this Tuesday night.

Aberro

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Re: Some wheel thrown Pottery
« Reply #9 on: April 08, 2012, 11:53:38 PM »
I have done most of the research for the kiln thus far. We don't actually know if it's working or not because we don't have the right plug, but if it is, it was decided a while back that the best thing to do would be to put a digital controller on it. This would be a fairly simple thing to do and would allow for much more precise firing. This is ideal because, personally, I intend to use the kiln for glass fusing and ultimately plan to teach classes. We have most of the supplies necessary to put a digital controller on, we just need to get it actually operational.


The kiln is a Paragon A-66b with an add-on for extra height. Once operational, tile racks would be nice so that more things can be fired at once. Grog should be purchased to patch cracks and things (the thing is pretty ratty), as well as gloves for unloading. It should be noted that both glass and clay (plus glazes) will be a pretty major expense to anyone wishing to use the kiln for that purpose.
« Last Edit: April 08, 2012, 11:58:10 PM by Aberro »
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Bob_Danforth

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Re: Paragon Kiln
« Reply #10 on: April 14, 2012, 05:24:39 PM »
It is likely that the kiln could be used but it is very small for normal use. The Square Cube law is pretty stiff when you are running at 1000F much less higher.

I need to look more closely myself but it is usual to have a cone switch. For a first firing to metasilicate that is quite sufficient however. To hang a digital controller is a very good idea if you are making a glass bending or annealing oven, or if you were doing something very fancy like growing zinc crystal glazes or the like.

We could build some much more efficient ovens that could then be used for a wide variety of purposes. A common arc welder can drive Silicon Carbide rods that can accomplish temperatures like 3500F well above the 2100F that is the limit of something like that Paragon. In another matter Fire Brick is very good for standing up to high temperatures and even somewhat corrosive atmospheres, but they are quite bad at insulation. Much better is Ceramic Fiber that does not stand up to abrasions or corrosive atmospheres, but you can have a white hot object in your hand if there is an inch of fiber underneath. The Paragon could be enhanced considerably with a layer of fiber between the metal and the firebrick and be much cheaper to run. It could be hardwired or use a plug but a 50amp breaker and perhaps a method of measuring what electricity is used would be a good idea.

If we had an interest group to build ovens, I am happy and competent to help in design and build to the task that we are after. We can also build any of several possible pottery wheels depending on parts available. Most of what we could use in that department can be found at Skycraft or Acme.

Perhaps a Thurs night would be a good meeting/ teaching time to figure out where we can go with it.





Bob_Danforth

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Re: Some wheel thrown Pottery
« Reply #11 on: April 16, 2012, 06:14:57 PM »
For Heating elements  Globar is an old brand style and a good system for high temp ovens.

tomlong74

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Re: Some wheel thrown Pottery
« Reply #12 on: July 01, 2012, 09:37:24 PM »
YES! I need to get back into throwing clay -- We can make wheels for classes - Christmas Folk School has classes in this too. Glazes are the fun.

johnbentcope

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Re: Some wheel thrown Pottery
« Reply #13 on: July 01, 2012, 09:42:45 PM »
I'm all in on this. It's been too long since I've thrown anything.
I like colors.