HI
I am newbie from cnc machine , i not sure my setting is true or wrong , Pls advise me the below setting is wrong

1)NEMA 23 1.8Degree Stepper Motors 1.26Nm/175oz-in 2.8A(57BYGH56-401A )
2)1/8 microstep setting
3) ball screw 20 mm pitch
The calcula is ( 200x8/20 =80 step per mm)
I set on the mach 3 motor tuning is ( steps per 80 , velocity mm per min 600, acceleration mm/sec/sec 200 , step pulse 5 , Dir pulse 5 ) is true , What is the best setting on the TB6560 Board ???

Thank advise and sorry my bad english