Problem Scaling a part

Hi guys,  I created a plastic bassin from surfaces and now has a thickness of 1.3mm, the thing is that I need to create

another one and works for me creating a scale of the first one.   If I scale the part using uniform scaling and 82% it scales

without any problem, but if I scale X82% Y89% and Z 82% (that is what I need), i get a rebuild error saying that it would result

in inconsistenr geometry, and to try tu use a different scale value.

I tried scaling about the origin, and centroid, same results)

Any Ideas?

Thank you in advance

Victor

SolidworksParts And Features