STL problem again

Dear all,

I try to make a simulation with an obstacle inside a fluid domain. The obstacle is from an STL file.
I try to follow some examples (externalFlowAroundCylinder), but the obstacle lies always outside the fluid domain whatever are the changes I can made on the coordinates in the “translate” and “setPhysicalPosition” functions of the successive TriangleSet and DEFscaleMesh objects.
Does anybody can give me a link or two on how to proceed to incorporate STL files and “play” with it’s position inside the fluid domaine.