If that still doesn't work for some reason, you can always move it over after you import it.Īnd btw, you are correct about the export to cad function in SU, it is only available in the Pro version.

If you need to convert several 3D polylines within a drawing, multiple 3D polylines can be selected and 'Flattened' at once. The X and Y geometry will be preserved and the resulting 2D polyline will be placed at a user-specified elevation. Then grab everything and manually move them in line with the ground plane (using shift to keep from pulling them out of alignment).įor aligning with the axis, make sure your AutoCad drawing is located at the 0,0 axis before you import into SU. Applying the 'LCADFLATTEN' command to a 3D polyline will replace a 3D polyline with a 2D polyline. Since LT doesn't support LISP functions available that would flatten the linework for you before importing to SU, the easiest way I can think of to get everything down to the ground plane would be to switch to parallel projection in SU (camera menu) and look at the model from a side view. Unfortunately the LT version of AutoCad doesn't officially support 3D drawing so it can be hard to know when line work isn't on the ground plane. If you are having problems with line work importing with lines floating up in the air, that is going to be an issue with the cad linework having been drawn in 3D. Tinanne is correct, you would need to export from ADT only, 2008LT should work just from the original file.