Thanks for the suggestion but unfortunately it does not work with a ball 0.01" diameter. The reason, I think is that a Tangential Analysis is performed before meshing and that operation excludes practically everything leaving only a few points, if any, to mesh.
As I see it, the options to use MachCloud for meshing right now are:
1) make a program to convert English units (inches) to International (mm)
2) scan with Mach3 in metric (executing G21 before the scan? I'm not to sure if that would work at the moment)
3) wait until ...
Also, could it be possible that MachCloud refuse to mesh if the object is too small (like Tom Hubin's penny cloud file for example)?
Gaston