Logged in from home , it,s a G76 cycle with the M23/M24 in the line above , you may need the parameter turned on setting 95/96 are for the Thread chamfer size , and Thread chamfer angle does your machine have the intuitive package ? also you mentioned you will be doing a lot of threads , if it's a course pitch look into thread clipping as well , I have never used it but my partner at work has used it . it is a tool path that removes the rag edge on the 1st few threads , basically from what I gather you use a grooving tool and crest the tops of the 1st few threads on a taper and it deburrs the thread and provides a nice lead in

crazy never seen anything like it

are you using a balanced boring head ? have you tried adjusting the rpm ??

any progress ?? most awkward material I have worked with was pure carbon , in the end of all things good ole HSS got the job done .

yeah that is never fun ,

there is a shop in my area that buys and rebuilds machines , not sure if he sells them or keeps them for their own use , they do gear cutting as well as cnc .