The concept of restricting the machine and making it know where it is standing seems like a serious challenge. Well, not really. I am going to demonstrate a few techniques on connecting switches and how to home the machine, but in a rather unique way. You will learn how to connect limit switches and home switches using two different circuit types, normally open (NO) and normally closed (NC). I will also demonstrate a method of homing that uses the end mill (bit) to find the home position. This is not meant to be a complete comprehensive tutorial on limit switches and homing the machine, but it will get you running.
