If you have imported the model into Blender successfully, you have already finished the most difficult part already since the process is pretty tricky73790 wrote:Ok since im using sketchup(not pro) i import into blender, but after that how to i get it to a DAT File?

I think it should takes some time for you to make your blender model ready so I won't go any further up to this moment. Just tell us when you are ready

I've attached a sample scene for you. I've put a small cube which the size is equivalent to a unit cube (i.e. 1m x 1m x 1m) for you as a reference to adjust the scale of the model, but it is not a must to follow my scale.
Do not ask me anything about modeling and scene setup in Blender. If you want to learn about it, just have a look at wikibooks:
http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro