![]() ![]() 0005" if the laser beam has a diameter of. An example would be trying to cut a line that has a length of. Also extremely small lines and arcs can cause other problems related to the absolute accuracy the CNC machine is capable of physically moving. Conversely if the lines and arcs are created too small the file becomes much to large in memory size and too cumbersome to efficiently work with. Of course this “Arc fitting” process can cause part distortion and noticeable facets if the lines and arcs are allowed to be too long. So in order to cut out shapes that have complex varying radius curvature such as the file attached I must convert the native Rhino Nurbs geometry into lines and/or constant curvature arcs. Both G02 and G03 movements are circular arcs with fixed radius meaning they are not allowed to have changing curvature. Its important to note that the machine is only capable of three different types of cutting motions 1) G01 or a strait line motion between two XY coordinates 2) G02 or a circular arc motion in the clockwise direction 3) G03 or a circular arc in the counter-clockwise direction. It runs with a Fanuc controller and utilizes G-code for all cutting movements. So the CNC machine that I draw files for and operate the most is an Amada FOM2 3015 2500kw Co2 laser cutter. Hey everyone, I have another question centered around this topic of exporting Rhino Nurbs into DWG or DXF file types for CNC processing. ![]()
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