I was having heaps of trouble getting a 4th axis switched over to a different machine.  Combined moves like G1 X1 A360 F50 were really slow.  On previous setups, this would turn at about 3000 in the feedrate dro.  Changing the number in the "Rotational Radius" DRO was NOT affecting it (and I knew it should be).  I checked the new XML to the previous XML's and found that the parameter "UseDiam" was set to 0.  Turned it on (1) and everything was back to normal.  Sooooo...

Is UseDiam parameter set somewhere in Mach UI and I do not see it?  A tick box in a pulldown or summat?

Edit: By the way, finding that parameter would have been an impossible task without the "MachProfile" program by K. Dietz! http://www.kd-dietz.com/klausphp/index_eng.html  Thanks Klaus! (hope I got that name correct)

Is UseDiam parameter set somewhere in Mach UI and I do not see it?  A tick box in a pulldown or summat?

Config  >  Tool Path  > " Use Radius for Feedrate  "   


Alex