Huh, how do I model this?

[Coen]

Hey,

I just started modelling a starship I built in a game I really like. I made the model in Sketchup, but now, when I try to print it, the printer won't do anything.
Could you guys help me with this, I'd love to be able to print my "spaceships" and put them somewhere.

Coen


Here's the model I wanted to print