shipconstructor export to navisworks

[Anonymous]

Morning all,

I am curently working in Shipconstructor 2011, I am trying to export (by dwf) to navisworks freedom,

The problem I have is once opened in Navisworks, One item of equipment (2 instances of) modelled in shipconstructor (via Autocad 2011) will open in Navisworks, while another item of equipment modelled the same way, (also 2 instances of) will not display.

I have checked through the file in Shipconstructor and there doesnt appear to be any differences,

to test I have also modelled a solid cylinder and a surface cylinder in Shipconstructor, in this case neither opened in Navisworks!!!

Can anyone save me from makng obvious mistakes and suggest where Im going wrong please, or even better, a way to get round this, has anyone had similar experiences

(I had the same trouble trying perform the same operation with Autodesk Design Reviewer.)

Please Help,

Sam