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handbuilt/warping at glaze firing-slab roller

updated tue 18 nov 03

 

Sam or Mary Yancy on sun 16 nov 03


hHnk - I have a northstar heavy duty 36 inch slab roller with two large rollers (top and bottom) and a LARGE table. I bought this one due to the advertisement and research that clay compressed on both sides (which this set up does) virtually eliminates warping. Works for me. Also I added some roller wheels so I could move it around. table is about 40" by 6 Ft and well constructed. It has many uses when not slab rolling. P.S. thickness is very easy to set up. Sam in Daly City

Hank Murrow wrote:On Nov 16, 2003, at 6:47 PM, William Sheppard wrote:

> All of my work is both hand built AND very thin (1/4" or less).
> I
> have found that I need to turn and flip my clay as I pass it through my
> slab roller EVERY time I make the next pass to get to the thickness I
> need.
> This might take 4-5 passes. If I keep running the clay through in the
> same
> direction I was at times experienceing a plate or platter that would
> warp
> in the second glaze firing even though it was fine when it came out of
> the
> bisque firing.

Dear William;

Does your slab roller have only a top roller, or does it have two
rollers (upper & lower)?

Cheers, Hank

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