It might not seem obvious, but it is very important clean up DWG files before importing or linking into AutoCAD. Revit is not AutoCAD and it is important to note that Revit will not behave like AutoCAD. So we need to take this into account when working with DWG files. Spending a few minutes cleaning up a DWG file before importing or linking that file can prevent real problems from occurring down the road. Here are some items to consider when working with DWG files in AutoCAD. 1. Be aware how far the CAD geometry is from 0,0,0. Different versions of Revit get squirrelly if the geometry is either greater than 2 miles or 20 miles from 0,0,0 in AutoCAD. While you are checking this, look for scratch or unnecessary geometry that might just be hanging out somewhere. If you don’t need it, get rid of it. Use Zoom extents in AutoCAD to see the extents of the geometry. 2. Review the layers in AutoCAD. Make sure you are aware of what is on/off or frozen / thawed. If there is geometry on