Question about $$

Hey everyone, I have just put together my 3018 pro, got easel and ugs.
I am not using limit switches, so to be safe I have set my $$ for x y z to machine table specs… X 300mm y 180mm z 40mm. Hope that’s right, save machine grinding motor if I go to far, as assuming would alarm out as long as going from zeros btm left machine… Also do I need to change my $$rpm max from 1000 to say 8000, even if I set easel to cut at 8000. As I’m exporting gcode to ugs, I’m guessing as that set to 1000, would run at that.
Bit long I know sry. Ty to everyone of you