write a simple CNC program that can be used to move a cutting tool in a 2D plane...

The following is an example of a simple CNC program that can be used to move a cutting tool in a 2D plane:

N10 G90 G94 G17 G54
N20 G20
N30 M3 S1000
N40 G0 X1.0 Y2.0
N50 G1 Z-0.1 F10
N60 G1 X3.0 Y4.0 F20
N70 G1 X5.0 Y6.0
N80 G0 Z0.1
N90 M5
N100 M30

Explanation:
- N10: Program start, setting initial modal commands.
- G90: Sets absolute programming mode.
- G94: Sets feedrate to units per minute mode.
- G17: Selects XY plane for circular interpolation.
- G54: Selects work offset coordinate system 1.
- N20: Sets inch programming mode.
- N30: Spindle ON, clockwise rotation, speed 1000 RPM.
- N40: Rapid move to X1.0 and Y2.0 coordinates.
- N50: Linear feed move to Z-0.1 at feedrate 10 units per minute.
- N60: Linear feed move to X3.0 and Y4.0 at feedrate 20 units per minute.
- N70: Continue linear feed move to X5.0 and Y6.0.
- N80: Rapid move back to Z0.1.
- N90: Spindle OFF.
- N100: Program end.

Note:
- G0: Rapid positioning command (moves tool rapidly without cutting).
- G1: Linear interpolation command (moves tool in a straight line at a specified feedrate).
- F: Specifies feedrate in units per minute.
- M3: Turns spindle ON in clockwise rotation.
- S: Specifies spindle speed in RPM.
- Z: Specifies the depth or height of the tool.

This is a simple example, and CNC programs can be much more complex depending on the desired cutting operations and machine capabilities. It's important to have a good understanding of the CNC machine and the specific G-code commands it supports to create effective and safe programs.

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