If you have a plate with countersunk holes on both sides (e.g. a stair stringer) the DXF doesn't make sense (see attachements).
The countersunk holes are shown in the DXF as two concentric circles so a plate profiling machine cuts both circles right through making an oversize hole and rendering the material as scrap. There is no way to show the countersink effectively in a DXF file. The Countersunk hole should be shown in DXF as only the plain round through hole. The larger cricle should not be included. The Countersink would be created as a secondary manufacturing operation.
Also, the file includes two views of the plate; one for each side. The trouble is both views are the same orientation. A plate profiler cannot cut one view so that the part can be turned over to match the other view. The second view should be mirrored so that it makes sense - if it is even created at all. It is not really needed to have two views if the holes are shown as above. Having two shapes in one file can lead to the profiling machine cutting two parts yielding double the quantity of parts required. With the issues above these are all scrap too.
The DXF creation system needs reviewing so that it interprets the part / NC file into something usable rather than blindly drawing what is in the DSTV file.
