> > What do they do? > > I get the impression that they are lathe roughing cycles (turning, > facing, boring?) If so then the same thing can be easily performed by > simple loops in G-code. > > I even think it is possible to create user-defined G-codes (which > could contain the loops) but I can't find the relevant documentation. > > My approach has been to write a general-purpose lathe G-code program > that takes target X and Z along with cut, feed and surface speed from > a Pyvcp panel. Buttons let you choose the required operation (turning, > facing, boring, parting, drilling, threading). > I find it works well for simple rectilinear components. > > -- > atp
I refer to the G71,G72 and G73 codes for lathes as defined by Fanuc and HAAS and equivalent L95 in Siemens 810T. They are stock removal cycles based on a given profile consisting of any sequence of contiguous G1 and G2/G3 sections in the profile. In the Siemens 810T control you specify the profile in a GCODE subroutine. Then you define cutting speeds, roughing and finishing depths, starting points etc. in the G72 type cycle (called L95), which calls the subroutine for the profile. To do it by hand coding you would have to calculate by hand the starting point and end point for each cut. These points can be anywhere on the profile. This is the main advantage of these cycles, which does all the point calculations in the control. Rudy __________ Information from ESET Smart Security, version of virus signature database 4938 (20100312) __________ The message was checked by ESET Smart Security. http://www.eset.com ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
