For CNC Milling – None…. It becomes relevant when you use your machine for laser work as well ( GRBL versions before 1.1 paused when changing spindle speed – when interfacing a laser the spindle speed becomes the control for your laser intensity and the constant change results in “jerky” movement – GRBL 1.1 employ a laser-mode where the spindle speed is changed without pausing)
gavin
For CNC Milling – None…. It becomes relevant when you use your machine for laser work as well ( GRBL versions before 1.1 paused when changing spindle speed – when interfacing a laser the spindle speed becomes the control for your laser intensity and the constant change results in “jerky” movement – GRBL 1.1 employ a laser-mode where the spindle speed is changed without pausing)