Do you mean it cracks at the joints when you animate with it? All plasticine does that - you just have to smooth it down each time it happens. That's the strong point of plasticine and its greatest weakness - you can get all kinds of morphs that aren't possible with a puppet, but it does require a lot of patching up and smoothing down every few frames. Too much work for me, that's why I don't do clay animation.
I do clay animation. I use van aken clay. Strider is right, that happens to clay models, even I get the most problems with the hands. Do you use armatures? Cause if you don't then I might as well teach you how. It all depends on the character you are making. Clay animation requires a lot of time and work. You got to be patient.
I could still recall what one of the members here in another site told me about paraffin wax. He said that you could melt it and mix it with van aken clay to be workable. But i myself have not yet try it. But i am planning to take a try with it.
Thanks for your replay.
Good to know, that all plasticine are broken. I have a very hard plasticine. Mabye when i take a softer one it is a little bit easir to work with it? Because when i take the first time, the head of my figurs up its crake on the nake.
Now i have this Plasticine:
Here stand: Plasticine mold.
Maybe when i take this one:
here stand: model art cartoon-plasticine. Could that be better?
I found it exaggerated that when i just take the head a little bit up and then cracks
Van Aken works well if you know how to work with it. I can't work with it unless I harden it, (melt in a double boiler and add paraffin wax.) You can get more detail in the sculpts that way and it squishes less. The thing about clay animation is that it does require a lot of re-sculpting. if you extend the arm you might get a seam that cracks, it is all about smoothing it out, using the right tools and you fingers.