Then, click on the "Export Version" dropdown to get the list of DXF versions available: When you click "Save", you should get an "Export to AutoCAD" prompt something like this: In the usual file saving procedure, specify the file location (the folder in your CMC software for imported files,) key in the file name you want, and click on "Save as type", and you should get a dropdown list something like this click on "DXF-AutoCAD": Yes, but you have to select a compatible DXF version. Could you attach a screen shot of the Deltacad screen image showing the nodes? Or, if you care to send me the DXF file or just the dimensions of the rectangles, I would be pleased to check or reconstruct the shape and send it back to you. The PDF image doesn't reveal the construction properties of the entities. The cutting procedure for my Valiani CMC would be to cut the five inner-most rectangles first, then the outer rectangle and the five smaller rectangles welded to it would be cut in a single operation. In Corel Draw, I would construct that design using 11 ordinary rectangles precisely located, then join the outer rectangle to the inner rectangles by breaking those rectangles apart, pulling the nodes together as desired, and then welding the nodes at the intersections. If your Deltacad design is assembled from individual lines and not completed (welded) shapes, then I guess there would be greater likelihood of unwelded-node intersections. Can you change the direction of individual lines? If so, then that would probably change the cutting direction. The direction of a standard-bevel line may be right-to-left, and the direction of a reverse-bevel line may be left-to-right. If some individual lines are being cut with reverse bevels, that generally means the direction of those lines is reversed, as indicated by a small arrow seen at one point in the entity. That is, at one or more intersections, the nodes at the ends of the lines are not "welded" together. When a shape will not cut at all, that generally means the shape is not closed. I'm not familiar with Deltacad, but I have seen similar symptoms with files created in Corel Draw.
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