Plannng a CNC Progam - 4: Writing the Program
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WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.
Developing a plan for each operation on the part allows you to prepare the sequence of tools and the operations that each tool will perform before you start writing the program.

A program is simply a series of commands written in the order they are to be executed. The controller reads and acts on these commands one at a time without stopping.

Therefore when operations are defined, tools are selected and speeds and feeds are calculated, the last step is fairly simple because all of the decisions have been made. All that is left to do is write the program. Either on paper or with the aid of a CAM computer. A part set-up sheet is developed along with a tool list. This information is then used to set up the machine and cut parts.

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label: CNC programs, planning, machine slection, fixtures and tools, simple programs