i have had a 3d drawing sent to me and i have saved it as a .dxf file and when i come to dimension the drawing the only sizes that show are for radius's. When i try to get dimensions the line what normally shows the dimesnsions still come up but there is no size showing, do i have to do anything to the drawing itself before i can start getting information off it, any info is much appreciated as i have only started using bob-cad this week, thanks alot.