g2 [Smoothieware]

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== G2 G-code

G2 means "move while activating the tool", in a clockwise arc motion.

This command is equivalent to [[G1]], except the motion is rotational instead of linear.

G2's evil twin is [[G3]], which is exactly the same, except it is counter-clockwise instead of clockwise.

=== Format

The command is used as such : 

<code>
G2 X10 Y20 I30 J40 F100
</code>

Which means : move to X position 10, Y position 20, while maintaining a constant distance from the point of relative coordinates X 30 and Y 40, at a speed of 100 millimeters/minute

=== Parameters

^ Parameter ^ Usage ^ Example |
| <kbd>X</kbd> | Move to this position in the X axis | G2 X10 I10 |
| <kbd>Y</kbd> | Move to this position in the Y axis | G2 Y10 I10 |
| <kbd>Z</kbd> | Move to this position in the Z axis | G2 Z10 I10 |
| <kbd>I</kbd> | The point in X space from the current X position to maintain a constant distance from | G2 X10 I10 |
| <kbd>J</kbd> | The point in Y space from the current Y position to maintain a constant distance from | G2 Y10 J10 |
| <kbd>K</kbd> | The point in Z space from the current Z position to maintain a constant distance from | G2 Z10 K10 |
| <kbd>F</kbd> | Move at this speed in millimeters/minute //(No F parameter results in using last G1 feedrate)// | G2 X10 I10 F100 | 

=== Further reading

These resources are used as references for Gcode : 
* [[http://linuxcnc.org/docs/html/gcode.html|LinuxCNC Gcode list]]
* [[http://reprap.org/wiki/G-code|Reprap Gcode list]]