Do you have to have one to work with polymer clay? Often that answer depends on what you would like to make.
I did not have one for the first two years I worked with clay and I got along just fine without it. Then after I did get one i wondered how I ever lived without it.
I sometimes use it to condition clay. Mostly I use mine to achieve mica shift and Mokume Gane. It is wonderful for rolling out sheets of clay for various projects.
Do you use a pasta machine with polymer clay? Could you live without it? Click "smooshing thoughts" and let us know.