Podcast
Questions and Answers
What key is used to stop the feed in emergency situations?
What key is used to stop the feed in emergency situations?
Feed stop
How can you select the program to run on the machine?
How can you select the program to run on the machine?
SELECT PROGRAM
What softkey should you press to edit a program on the keyboard?
What softkey should you press to edit a program on the keyboard?
EDIT
In what modes can part programs and subroutines be entered?
In what modes can part programs and subroutines be entered?
What is the function of the Spindle override switch in the lower position?
What is the function of the Spindle override switch in the lower position?
How can you enter a new program on the machine?
How can you enter a new program on the machine?
What does the Single block machining feature allow you to do?
What does the Single block machining feature allow you to do?
What is the purpose of the AUX OFF function?
What is the purpose of the AUX OFF function?
How can you override the feed to move more rapidly?
How can you override the feed to move more rapidly?
What must be input before approaching the reference point in all axes?
What must be input before approaching the reference point in all axes?
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Study Notes
CNC Programming
- CNC programming uses software to program a machine to perform a task, using a programming language called G-code.
- G-code is created by a programmer at the machine or through a CAM (Computer-Aided Manufacturing) program.
Is CNC Programming Hard?
- The difficulty of CNC programming depends on the type of machine and goal.
- Programming a 3D printer is simple, while programming a CNC mill to cut metal is complex.
What Does a CNC Programmer Do?
- A CNC programmer's job is to tell the machine to move in a specific direction and distance.
- This involves creating a sequence of movements, such as moving a certain distance to the left, right, up, or down.
GCommands
- G00: Positioning (rapid traverse), moving to a location as fast as possible.
- G01: Linear interpolation, moving to a location at a specified feed rate.
- G02: Circular interpolation clockwise, moving in a circular motion.
- G03: Circular interpolation counterclockwise, moving in a circular motion.
- G18: Plane ZX, specifying the plane of movement.
- G53-G59: Cancel zero offset, specifying the zero offset for each axis.
MCommands
- M02: Main program end, indicating the end of the main program.
- M03: Spindle ON clockwise, turning the spindle on in a clockwise direction.
- M04: Spindle ON counterclockwise, turning the spindle on in a counterclockwise direction.
- M05: Spindle OFF, turning the spindle off.
- M06: Tool change, changing the tool being used.
- M08: Coolant ON, turning the coolant on.
- M09: Coolant OFF, turning the coolant off.
- M17: Subroutine end, indicating the end of a subroutine.
- M30: Main program end, indicating the end of the main program.
Reference Points
- M: Machine Zero Point, the reference point for the machine.
- R: Reference Point, the reference point for the part.
- N: Tool Mount Reference Point, the reference point for the tool.
- W: Workpiece Zero Point, the reference point for the workpiece.
EMCO Lathe Control
- EMERGENCY Key: Mode selector, used to switch between modes.
- Feed / rapid feed override switch: Used to adjust the feed rate.
- AUX OFF / AUX ON: Used to turn auxiliary drives off or on.
- Spindle override lower / 100% / higher: Used to adjust the spindle speed.
Program Input
- Part programs and subroutines can be entered in the modes JOG, AUTOMATIC, INC 1...INC 10.
- Programs can be called up or created new using the keyboard.
- Programs consist of three parts: start program, run program, and end program.
NC Block Structure
- A NC block consists of a sequence of commands, such as G71, G90, G80, G60, G54, G58, Z(?), S1000, M04, F0.1, T?D?, and M08.
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