For the TL;DR bunch, my question - when implementing these, should they have smarts in them to prevent gouging or overloading the tool? Or is it assumed that the operator/programmer is smart enough not to try something dangerous?
Detailed question. I want to implement these as wizards. I see there is already work done here (http://linuxcnc.org/index.php/english/forum/40-subroutines-and-ngcgui/11414 -metric-lathe-subroutines-g71-g72-etc-etc) so I'll probably "borrow" from that. My question is related to what should the cycles do, if anything, when there is potential tool gouging, or excessive loading of the tool. There is a great picture of what I'm talking about here (http://www.linuxcnc.org/index.php/english/forum/20-g-code/27040-g71-g70-cyc le-for-lathes-first-tests). In the picture at the bottom, if that was really the lathe tool being used, it would gouge the work piece as it hit the 90 degree shoulder at the left (both in roughing passes, and finishing). I've read Shmid and he says that if there is a 90 degree shoulder, the cycles will only rough up to the final surface and will not cut that face on a finishing pass. So I can implement that and rely on the operator to select the correct tool. What about things like the arcs - in the left most arc, as the tool moves left during a finishing pass, it will be taking heavier cuts if multiple finishing passes are a fixed offset from final profile. Should I be taking into account the amount of material that is being removed? Do fanuc and haas cycles do this? This will complicate the configuration by needed to know the tool geometry. Frank ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
