GCODE – G01 – Straight Line, feed controlled, Linear Move

What is G01?

The G01 command instructs the machine to move along a straight path from its current position to a new position(coordinate). The movement is performed with a controlled feederate. The new coordinate can be absolute or relative, depending on the effective mode (G90 or G91)

Syntax:

G01 X12.5 Y14.7 Z5.3 F1.2;

• X, Y, Z – The target coordinate at the end of the movement.
• F – The Feedrate at which the machine will move from the current position to the target position.

What it does:

The machine will move from its current position to the target position at a controlled feederate. The endpoint position is calculated depending on the “mode” of the program:

1. Cartesian or Polar coordinate mode (GCODE G15 or G16) – The default is always Cartesian.
2. Absolute or Relative coordinate mode (GCODE G90 or G91) – The default depends on your controller.

Examples:

In all 4 examples, the machine will move from coordinate P1 to P2. Pay attention to the differences!

Example #1 – Move Directly from P1 to P2 along the Blue Line in Absolute Mode.

N10 G90 (Setting Absolute mode);

N20 G00 X1.0 Y1.0 (Position the machine at [P1]);

N30 G01 X9.0 Y7.0 F0.5; (Move Directly to position [P2] at a federate of 0.5);

Example #2 – Move Directly from P1 to P2 along the Blue Line in Incremental Mode.

N10 G90 (Setting Absolute mode);

N20 G00 X1.0 Y1.0 (Position the machine at [P1]);

N30 G91 (Setting Incremental mode);

N40 G01 X8.0 Y6.0 F0.5; (Move Directly to position [P2] at a Federate of 0.5);

Example #3 – Move Indirectly from P1 to P2 along the Red Lines.

N10 G90 (Setting Absolute mode);

N20 G00 X1.0 Y1.0 (Position the machine at P1);

N30 G91 (Setting Incremental mode);

N40 G01 X8.0 F0.5; (Move to Coordinate [9,1]  at a federate of 0.5);

N50 Y6.0 (Continue from [9,1] to [P2])

N10 G01 X9.0 Y7.0 F0.5;

N20 Y12.0 (Move to the next point in Y direction (X & Z stay the same);

N30 X5.0, Y3.0 (Move to the next point in both X and Y, Z stays the same);

N40 Z100.0; (Move to the next point in Z direction, X & Y stay the same);

And so on…

Example #4 – Move from P1 to P2 along the Blue Line with Polar Coordinates.

N10 G90;

N20 G00 X1.0 Y1.0 (Position the machine at P1);

N30 G91 (Setting incremental mode);

N40 G16(Setting Polar mode);

N50 G01 X10.0 Y36.8 F0.5 (Move from p1 a distance of 10 at an angle of 36.8 degrees and reach P2);

The result is exactly as in example #1 above!

X2 = X1 + 10 X COS(36.8) = 9.0

Y2= Y1 + 10 X SIN(36.8) = 7.0

---