Cnc Program Machining the square groove

Machining the square groove

N30 X.375

• Y-.375 : tool rapids to position A.

N35 G01 Z-.125 F10

• G01 linear interpolation.
• Z-.125 tool feeds 
• .125 below the work surface.
• F10 feed rate set at 10 in./min.

N40 X1.625 Y-.375

• X1.625 top groove cut to the right hand end.
• Y-.375 measurement did not change because it was set in block N30.

N45 Y-1.625

• Y-1.625 right hand side of the groove cut.

N50 X.375

• X.375 bottom groove cut to the left side.

N55 Y-.375

• Y-.375 left-hand side of groove cut; this completes the groove.

N60 G00 Z.100

• G00 rapid traverse mode.
• Z.100 tool rapids to
• .100 above work surface. 

It's easy not to make a cnc program, the most important key is we know the basic origin for a programming

»»  CNC PROGRAMMING...“Cnc Program Machining the square groove”

Basic Computer Numerical Control Programming

1. Identify the names and functions of some common parts of a computer.
2. Identify and use correctly vocabulary related to CNC machining.
3. Define CAD and CAM.
4. Fill out a chart with information that a supervisor gives to a new employee.
5. Analyze information from a line graph.
6. Identify the main idea and supporting details by outlining and mapping a reading.
7. Label the parts of a CNC machining center.Graphing  functions and  axis(  XYZ)
8. Locate and plot  points in a two-axis Cartesian  coordinate system 
9. Absolute position
10. Incremental position
11. Polar position
12. Explore and understand G and M codes

• Other addresses
• Machining function
• Program start definitions
• Straight line programming using manual cutter radius comp
• Basic M1 print (power point)
• Programs end definition
• Modals

»»  CNC PROGRAMMING...“Basic Computer Numerical Control Programming”

Memory Operation or Auto Mode

Programs are registered in memory in advance. When one on these programs is
selected and the cycle start switch on the machine operator’s panel is pressed,
automatic operation starts, and the cycle start LED goes on.
When the feed hold switch in the machine operator’s panel is pressed during automatic
operation, this operation is stopped temporarily. When the cycle start switch is pressed
again, automatic operation is restarted.
When the RESET key on the MDI panel is pressed, automatic operation terminates and
the reset state is entered.
To complete this operation follow the next procedure:
1. Press the MEMORY (AUTO) mode selection switch.
2. Select the program from the registered programs doing the following steps:
• Press PROG to display the program screen.
• Press “+” soft key.
• Press “DIR” soft key and the program library will be displayed.
• Enter a program number using the numeric keys.
• Press the O SRH soft key.
3. Press the cycle start switch on the machine operator’s panel. Automatic operation
starts, and the cycle start LED goes on. When automatic operation terminates, the
cycle start LED goes off.
4. To stop or cancel memory operation midway through, follow the steps below:
• Stopping memory operation.
Press the feed hold switch on the machine operator’s panel. The feed hold LED
goes on and the cycle start LED goes off. The machine responds as follows:
When the machine was moving, feed operation decelerates and stops.
When dwell was being performed, dwell is stopped.
When M, S, or T was being executed, the operation stopped after M, S, or T is finished.
• Terminating memory operation.
Press the RESET key on the MDI panel
Automatic operation is terminated and the reset state is entered. When a reset is
applied during movement, movement decelerates then stops.

»»  CNC PROGRAMMING...“Memory Operation or Auto Mode”

FADAL AUTOMATIC OPERATION MODES " MDI "

AUTOMATIC OPERATION MODES
" MDI " OPERATION MODE
In the MDI mode, a program consisting of up to 10 lines can be created in the same
format as normal programs and executed from the MDI panel. MDI operation is used for
simple test operations.
In order to complete this operation, follow the next procedure:
1. Press the MDI mode selection switch.
2. Press the PROG function key on the MDI panel to select the program screen.
3. Prepare a program to be executed by an operation similar to normal program editing.
M30, specified in the last block can return control to the beginning of the program
after operation ends. Word insertion, modification, deletion, word search,
address search, and program search are available for programs created in the MDI
mode.
4. To entirely erase created program in the MDI mode, use one of the following methods:
• Enter address, and then press the DELETE key on the MDI panel.
• Alternatively, press the RESET key.
5. To execute a program, set the cursor on the head of the program. Push CYCLE
START button on the operator’s panel. By this selection, the prepared program will
start. When the program end (M02, M30) or ER (%) is executed, the program will
be erased and the operation will end. By command of M30, control returns to the
head of the prepared program.
6. To stop or terminate MDI operation in midway through, follow the next steps:
• Stop MDI operation.
Press the feed hold switch on the machine operator’s panel. The feed hold LED
goes on and the cycle start LED goes off.
• Terminate MDI operation.
Press the reset key on the MDI panel. Automatic operation is terminated and the
reset state is entered. When a reset is applied during movement, movement decelerates
then stops.

»»  CNC PROGRAMMING...“FADAL AUTOMATIC OPERATION MODES " MDI "”

Learn to read program cnc lathe machine

If you look at the structure of a program cnc, What comes to your mind? Can you know how to read the program. Here I will explain my little knowledge about the structure of the program cnc.  

examples:
O0001
N005 G97 S250 M03
N010 T0101
N015 G00 X2.875 Z.1 M08
N020 G01 Z-2.0 F.008
N025 X3.1
N030 G00 X8.0 Z3.0 M09
N035 M30

The program can we describe as follows:

1. O0001 All Fanuc programs begin
2. N005  N words are sequence numbers for command identification

• Turn Spindle On

1. G97 Turn Spindle On Select RPM mode
2. S250 Select speed
3. M03 Turn spindle on in forward direction

• Index Turret

1. N010 T0101 Turret index command selects tool station and offset

• Move Into Position

1. N015 G00
2. X2.875 Approach X position
3. Z.1 Approach Z position
4. M08 Turn on coolant

• Feed Along Diameter

1. N020 G01 Select cutting mode
2. Z-2.0Z end point
3. F.008 Cutting feedrate
4. Feed Up Face
5. N025 X3.1 Ending X position

• Move Away

1. N030 G00 X8.0 Z3.0
2. M09 Turn off coolant
3. N035 M30 End of program command

Maybe that's all I can give about how to read a cnc programming, please If there is any deficiency is added.
Till we meet again with my upcoming article

»»  CNC PROGRAMMING...“Learn to read program cnc lathe machine”