Recall & Review
beginner
What does the M08 command do in CNC programming?
M08 turns the coolant ON to help cool and lubricate the cutting tool during machining.
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beginner
What is the purpose of the M09 command in CNC programming?
M09 turns the coolant OFF, stopping the flow of coolant to the cutting area.
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beginner
Why is coolant important during CNC machining?
Coolant reduces heat and friction, protects the tool and workpiece, and improves cutting quality.
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intermediate
How would you include coolant control in a CNC program?
Use M08 to start coolant before cutting and M09 to stop coolant after cutting is done.
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intermediate
Can you use M08 and M09 multiple times in one CNC program?
Yes, you can turn coolant on and off multiple times as needed during different machining steps.
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What does M08 do in a CNC program?
✗ Incorrect
M08 is the command to turn coolant ON during machining.
Which command stops the coolant flow?
✗ Incorrect
M09 turns the coolant OFF.
Why do CNC machines use coolant?
✗ Incorrect
Coolant helps reduce heat and friction on the cutting tool.
When should you use M09 in a CNC program?
✗ Incorrect
M09 is used to stop coolant after cutting is done.
Can you turn coolant on and off multiple times in one program?
✗ Incorrect
You can use M08 and M09 multiple times to control coolant flow during different steps.
Explain how and why you use M08 and M09 commands in a CNC program.
Think about the role of coolant during machining and when it should be active.
You got /4 concepts.
Describe the benefits of using coolant in CNC machining and how M08 and M09 help manage it.
Consider what happens if coolant is not used or controlled properly.
You got /5 concepts.