hi you may find these functions available as an option :
... with manual parameter edit :
...... for turning : harmonic spindle speed control ( hssc )
...... for threading : i don't remember exactly
... using microphone or built-in senzors to suggest and/or to auto-adjust the spindle speed : pls check navi-lg & navi-tg @ this link : https://www.okuma.eu/technologies/in...achining-navi/
please, would you share some applications that require ssv ? kindly