How to make a square clay, pottery, porcelain plate: part 2

[saoulette]

Hi, I have a question for you, I'm studying ceramics in Barcelona, and I have troubles with porcelain. I made a really nice plate, did the first burning (i don't know the engish term for it) at 900 degrees celcius, then glazed it and put it at high temperature 1260 degrees celcius. And here is what happened: the plate got all flat My teachers said it was because usually we have to use a mold so it can rest on itwhen we put it in the oven.I don't know if what i'm saying is clear please help me :)

[DCuzick]

@saoulette There could be a couple of reasons that your plate flattened out. When you throw a plate, curve it slightly up from the center to the outside edge, do not make it flat. Porcelain will get a little soft during the high firing, so it may slump (fall) more than stoneware. Also make sure that your foot ring is wide enough to give good support to the outer area of the plate where it will most likely fall and flatten out.

Buena suerte!

[saoulette]

@DCuzick thanks for the quick answer!! I'll try that! Your videos are really good and instructives!!! Thank you!!!

[egob40]

neat thanks you trim different than my professor but what the hell does he know lol jk

[DCuzick]

@egob40 There are lots of different ways to do things when working with clay. Find what works for you.

[egob40]

thanks I through my first square plate today turn out better than I thought but wasn't keep able but I will keep practiced thanks again

[free2throw]

David, I enjoy your videos so much and I have learned LOTS from watching them. Thanks for sharing!!

[bubbieupa]

where is part one of making a square plate?

[DCuzick]

@bubbieupa Look at my channel, you will find it.

[DirtKickerStudio]

I'm surprised that you're ready to trim this plate after 1 day. I'm using Laguna Frost Porcelain. If I don't let it sit in my drying cabinet for a few days it cracks like crazy. How do you dry your porcelain?

[DCuzick]

@DirtKickerStudio I use Nara porcelain from Aardvark clay in the LA area, I also use English porcelain from Laguna. I generally dry the plates for several hours in the open and then overnight covered in plastic that has holes in it. The next day I flip the plates and let them dry for several more hours and generally trim that second day, sometimes I will cover them again and trim the next day, depends on the weather. No cracking. The square plates will be dried right side up, low on a rack.

[Glassfox9]

when you say you are waxing the temoku glaze, what sort of wax resist are you using?I have a couple of projects that I would like to do such a thing, but am not sure of the best resist.

Thanks for the great demos! Really enjoy them.

[DCuzick]

I use wax resist form Laguna Clay, they have a website and you can order it directly. Other people like a wax resist from Axner. They both work very well, just remember to let it set up for an hour or more for best resisting of glazes.

[Glassfox9]

Great! thanks so much!

[DirtKickerStudio]

Very cool plates.

[ratmfan105]

i thought so, i ordered 2 for my teacher a month ago and he has yet to use them

[ratmfan105]

the red finish with rutile and black looks very nice, and what kind of trimming tool is that?

[DCuzick]

The tool is from a company called Bison Tools. He (Philip, the owner) is located in Las Vegas. The blade of the tool is made of tungsten carbide, it is a very hard material. I have been using this tool for over a year and it has not needed sharpening. But, if you drop it it will shatter, really, it will break if it hits a hard floor. The tools cost about $50 each. Philip hand makes each tool, including turning the wooden handle and he will make any size and shape you want.

[Alyzabeth01]

Very cool:) It's really nice to be able to see the finished pots.