We are a relatively small surveying shop in between Allentown and Reading in Berks County, PA. We have been using Trimble's Terramodel software since I started working here 18 years ago right out of high school. I went to the surveyor's conference last year to check out Carlson and AutoCAD Civil 3D as we have been having many issues importing CAD files that we are getting from different design engineers when we go to prepare for construction stakeout. As it seems that Terramodel is still best suited for the work we do, we will continue to use that for now. I was told that AutoDesk was planning to invest some time and resources into improving the Civil 3D software to prevent it from crashing repeatedly. Perhaps I'll revisit the idea of switching over once they work a few more bugs out.
Anyway, I was hoping that someone has cracked the secret to convert newer CAD files to something that can be imported into Terramodel. We have IntelliCAD 2015, which works for some instances by saving back to Acad 2000 version DWG or DXF. We have also used TrueView to save files back to 2000 version somewhat effectively. Sometimes we are still unable to make the CAD file usable in TM. Nothing seems to be a consistent fix, and I was hoping that someone somewhere may have unlocked the secret to what needs to happen to CAD files to make sure the data will import to TM properly.