Which of the following is a speWhich of the following is true about machine home, part origin, and tool change position? (Choose all that apply.) Which of the following is true about machine home, part origin, and tool change position? (Choose all that apply.) Machine tool home is a position set once by the machine manufacturer. Part origin is set by the programmer. All subsequent relative programmed tool movements are measured from part origin. Tool change position is set by the setup person.cification that can be found on an operation sheet? Which of the following is a specification that can be found on an operation sheet? Required tools or Material or Material form: plate, casting, or forging or Material pre-machining conditions: precut plate, annealed castings or forgings or None of the answers are correct