First of all, thanks for your great plugin..
I'm working with sketchup 8, and i got the folowing problem. All my desings are mm since i'm living in europe. I first choose 'mm' when i exported. Unformtunately, plugin suppose you're working in inch, a applyied a scaling factor of 25.5 to my output file...
Workaround : Select 'inch' in the output dialog, wich does not apply any scaling factor.
Suggestion of improvement : manage drawing units, and properly select scaling factor accordingly (ex : if drawing is mm and output is in mm, scaling factor should be "1") OR indicate clearly the scaling factor (1, 10, 0,0254..) instead of units, to allow user to know what is going to be done...