with nothing connected to your pc from the control box
start mach3 mill, dont worry about the flashing reset
upper left of screen open "config" and look at the bottom of the list you will see "save settings" this is very important and if you forget to press it before closing mach3 after setting up everything your settings "will be lost". on a mach3 restart you will have to start over again. when i ask you to save thats it. if I forget you do it before closing mach3 lol
1. open config select "select native units" a note pops up press ok, pick inch press ok. never change this, it is a one time setting for motor tuning. if you ever change it you will have to retune the motors.
now you need to open the mach3 mill setup and config pdf on your other pc and read chapter 5 down thru 5.3.5 table 5-2 thats enough reading for now.