Cannot preview and print model

[juliecouch]

I have previously successfully printed a series of models created in Sketchup, exported as .obj files and sliced in ReplicatorG. However, when I try to import these .obj files to S3D I can see them on the print bed, but when I prepare to print, there is nothing in the preview and nothing prints.

Any ideas, please?

Thanks

Julie

[CompoundCarl]

Post your factory file. That will make it easier to help.