The filter that you are referring to was originally written to be used with MacDraw Pro. If you used Claris CAD 2.0v3 with Claris XTND System 1.2v2 most of these difficulties should disappear. If you are using 2.0v1 or 2.0v2 of Claris CAD some objects will not be saved out. If you are using 2.0v3 of Claris CAD you will need to unjoin Points and Walls for them to exported out correctly. At this time all type 3 fonts will not be exported out to the EPSF file. There is no work around at this time.
Note: It is important to realize that the GD&T (formerly called GDT) font and the ClarisCAD font will not be exported out because they are type 3 fonts.