This method takes a little more time, and also requires you to set up your computer for it. But if the other methods fail, this one will usually successfully export a .dxf file with all of the curves in your desired profile.
These files work very well with low-wattage laser cutters, so if you're cutting wood or acrylic, this is usually a good way to go. The files will need significant post-processing after export if you're using a laser that requires lines to be welded together, for example a large production laser used to cut metal parts.
Free cut-ready DXF designs for CNC. Suitable for routers, plasma cutting, laser cutting, engraving and waterjet cutting. New downloads added every Tuesday!
(1) Download one of these post-processors I have also attached them to this Instructable.
a) The Epilog post processor, which outputs your file as an SVG. If you plan to do more post-processing in Inkscape, Illustrator or CorelDRAW, this is a good option.
b) The AUTODESK DXF post processor (found on this page). This just exports a .dxf, and it's the one shown in the screencast.
b) The AUTODESK DXF post processor (found on this page). This just exports a .dxf, and it's the one shown in the screencast.
(2) Put the post-processor in your CAM post library. In the screencast, I just placed the file on my desktop and navigated to it.
(3) Make a simple CAM toolpath using a library lasercutter. The width doesn't matter.
a) You'll need to turn compensation off in the toolpath settings, but you won't have to do much else.
b) Even if you don't have experience with the CAM workspace, just do what I do in the video and you should be fine!
b) Even if you don't have experience with the CAM workspace, just do what I do in the video and you should be fine!
(4) Post your process as if you're preparing an NC file. Choose the Epilog or AUTODESK DXF post-processor, and you'll be provided with a prompt to save your .svg or .dxf file!