1a. Make a project by hand (hand-building)
1b. or... make a project on the pottery wheel
2. Let it dry inside, then put it outdoors to be fired
3. The Instructor then 'fires' the projects in a large oven called a Kiln (to 1940°F)
4. After the kiln has cooled, dust off the piece with a damp sponge. The clay has hardened, but the tiny pores are still open.
5. Paint several coats of Glaze, a special paint that is mixed with colored-pigments and liquid-glass.
6. The pottery gets fired again, even hotter, causing the glaze to melt and the clay to become water-tight (to to 2200°F)
7. The finished product is now truly Ceramic, and the glaze has now become fused with the clay!!!
Playing around with our new vinyl cutter, something to help us make templates and labels
We have about 10 motorized kick-wheels
We have several large work areas with stools
We have over 30 Glaze colors, and some even have special effects
It works like a steamroller, for flat pieces
This machine recycles clay scraps (Pugmill), making the clay like new again
Letters Makers, Cookie Cutters, Flower Making kits, Texture Rollers, Sculpture Tools, Stamps, and so much more!
Each box weighs about 50 lbs
it is about 24 cubic square feet inside (Geil), it holds about 80% of student work, it is primarily for non-kitchen ware / projects
Each student gets their own 1/2 shelf for both in-progress and completed projects
This little kiln helps with small projects, 3 cu ft (Cress), we also have a 6 cu ft kiln, they hold about 10 % to 20% of student work at a time
We have a variety of rolling pins as well. Some even have textures on them. It seems that Ceramics and Kitchens have a lot of tools in common
Ms. Moreno has been working with ceramics since 2008 and is experienced in hand building and wheel throwing. Her favorite is working on the wheel! In 2018, she lived in Japan for a month, working with a ceramics master teacher. Ms. Moreno has a masters in Education and has several years experience working with other mediums such as oil painting, drawing, and sculpture.
Pictured: wheel thrown bud vase.
A problem (kind of similar to Oil and Water),where the glaze pulls away or does not stick to certain areas due to tension.
If carbon or other contaminates are not burned-out properly durning the Bisque firing, gasses can later escape through the glaze at higher temperatures. See the clay exposed inside the tiny craters? This causes the dish-ware to collect bacteria and make the piece "un" food-safe.
Like chipping paint on a surface, compression issues can mean the glaze and clay don't fit together once the piece cools down.
Cracks caused by fluctuating heat. This could happen if the bottom gets hotter than the sides. Cracking has many different causes, including cooling too fast and thermal shock.
These are the coils inside an Electric Kiln. The controller is fully digital and programable. Set it... and walk away!
The coils produce an Oxygen-Rich atmosphere, which the Cone-5 clay and glazes love. It also helps to burn out carbon and other contaminants that can cause pinholing and problems with the glaze finish.
Mixing air and gas is quite an art. The left flame is "Gas" rich. The right flame is "Oxygen" rich. The number of factors involved in a successful gas firing are many, for atmospheric changes occur at many different stages.
Like cooking burgers on a BBQ, the gas kiln is manually operated. It is a steady vigil, with the goal of keeping the atmosphere from becoming a fire-storm inside (reduction). Reduction will burn-out cone 5 colors and can cause a lot of problems in terms of glaze and clay maturation.