Hi giai77, your knife looks great!

> I named every part in MoI and exported an obj file, but when I import it into 3D Coat it's one
> solid object, it didn't preserve the various parts. Any suggestion about this issue? Is it a MoI
> problem or a 3d Coat problem??

MoI does output object names in the .obj file, if 3d Coat isn't reading them that's something that would need to be tuned up in 3d Coat. You might look if there are some import settings that can be adjusted.

- Michael