I wrote this e-mail to a company with a Cad-program, because I find that the communication dwg --> Dietrichs and Dietrichs --> dwg is a bit difficult and can cause headaches...
"I am very interested in progeCad and I am having a question. I am using another software called Dietrichs ( see http://www.dietrichs.com ) 99,9% of my time and I simply love that software. But sometimes the possibility to open dwg drawings, draw on them, make measurements etc. would be a great advantage. But use $6000-8000 for that? No way! The only disadvantage of this software is the communication to and from dwg-files. This communication is sometimes useful or even required. The communication from dwg files to my program is necessary, because most architect drawings are delivered in dwg. This is also in most cases not a big problem, because I can convert the dwg files to dxf, that my program can read in 2D. So in most cases this is not a big problem (but sometimes it is).
Would progeCad be able to read the dwg files and safe them as dxf files (version 2000)??
Another thing is from Dietrich to dwg. It is possible to export 2D drawings to dxf, that can be opened in AutoCad. This is possible, but perhaps not perfect since measurements seems not to be transferred (probably because of the nature of the dxf - format). It would be excellent if progeCad could on an instant read Dietrichs 2D drawings directly and then one could safe them as original dwg drawings. Would this be possible??
A third thing could be to convert complete 3D models Dietrichs to dwg and dwg to Dietrichs via progeCad - this could in some cases also become convenient.
If these things are not possible, maybe it would be possible to develop it in coorporation with Dietrichs - especially the convertion from Dietrichs to dwg, because a complete file with all drawings etc. in dwg, is sometimes required by project-holders."
Please give comments, because I cannot be the only one who could have customers / authorities who wants the project in dwg.