One more vote for "Clay: A Studio Handbook" by Vince Pitelka. No BS, clear and logical explanations and suggestions.
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Posted by MichaelP on 27 September 2014 - 11:48 AM
all belt driven, we will pass...
Why? Belt drives, by definition, are much more simple (=reliable) than gear drives, very inexpensive and easy to repair and, with all probability, less noisy.
Many types of machinery benefit greatly from using gear drives, but a pottery wheel, esp., an old one, is not one of those, IMO.
Posted by MichaelP on 31 December 2013 - 04:26 PM
I just want to share a few photos of my kiln vent project.
The pin and its bushing were machined out of mild steel. The round foot - aluminum.
I didn't machine the circular top collar: I just found it in my scrap bin and used "as is" (the holes drilled in the collar do not interfere with its function, so I just left them alone).
I used the vent during several firings, then sandblasted the newly formed rust away and painted everything to finish the project. The pin was not painted. I blackened it to protect against rusting (it was heated, and used machine oil was rubbed into the surface). It looks like rust on the photos, but it's not. The inside of the bushing should be done the same way.
As you can see, magnets are used to regulate fresh air intake.
P.S. If I ever make one again, I'll use aluminum or stainless steel for everything (except the connection to the galvanized exhaust). Naturally, I'll have to make some kind of shutters instead of magnets then. This would require no painting and won't rust.
Posted by MichaelP on 08 September 2013 - 11:27 AM
Then I read your post in another topic, about you being a iaidoka.
I've never heard this word, so after reading your post I google it. One of the first links says: "...iaidoka will usually use bokken for such kata practice".
Now the term is crystal clear to me. I'm going to use bokken next time I kata piece of clay.
Posted by MichaelP on 02 September 2013 - 01:36 AM
Here is something else that can be helpful to program Cone 5-6 in digitally controlled kilns. This is a way to emulate Cone Firing while making a custom program in Ramp and Hold Mode of Skutt and other controllers, including PIDs.
Choose the rate of the temperature increase during the last 200F of firing and see what temperature your kiln should reach to achieve Cone 5, 5 1/2 or 6. Each graph corresponds to one of the Cone #.
This is based on the data provided by Orton for self-supporting cones.
Posted by MichaelP on 03 June 2013 - 09:38 PM
Posted by MichaelP on 30 April 2013 - 08:38 AM
Posted by MichaelP on 29 April 2013 - 08:05 PM
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