Cell left-handed problem when coupling
 

When I try to couple two meshes, the output window prints:

Warning - cell 330596 is left-handed. It will not be used to create couples.
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.
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What left-handed means? Any solution?

Thanks,
Wei

wei,

It means the cell is either of poor quality or it was generated backwards.

Type "cset news clist 330596$zoom off$cplot" and check if the cell is poorly shaped. If it looks like a good cell then you can make it right handed with "cflip 330596". If it looks like a bad cell then just delete it.