generate_3d_data.ulp uses line widths for 3d component height information. The ulp code doesn't use u2mm in it's height calculation, so all the component and board heights are off by a factor of 32. The fix is only two lines of code in the getPartHeight subroutine. I have verified it works if the u2mm is used and the units are adjusted appropriatly.
Should the downloadable ulp source be fixed?