Need help moving from SW3D to SketchUp via Blender

[macnab]

Hi

Want to use Twilight Render in SketchUp for rendering. I export selections as OBJ, import into Blender and then export as COLLADA.

The problem is, the DAE files are 100 times too big.

Is there an easy way to fix this, bearing in mind that when the item is imported into Blender it is referenced to the SW3D origin, and can be 15 metres away from the origin in Blender.

Don't want to scale in SU, because of the problem of adding things from time to time as my SW3D design developes.

[macnab]

Can't see how to edit.
SOLVED: There is an easily found Units selection in Blender, which can be set to 0.01.