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Coordinate System

Machine Attributes - Advanced Driver Settings - Coordinate System

Coordinate system

Coordinate mode

This controls how coordinates are output for the main program. The available options are:

  • Main Programme Absolute
  • Main Programme Relative

For sub-programs, coordinates are always in relative mode.

Arc Mode

This controls how the start, end and centre points of arcs are output:

Centre mode - This would output the following code:

G0X0Y10 (Tool up and move to the start of the arc)

G3X10Y-10I10J0 (The XY coordinate is the end of the arc and the IJ coordinate is the centre of the arc).

Radius mode - This would output the following code:

G0X0Y10 (Tool up and move to the start of the arc)

G3X10Y-10R10 (The XY coordinate is the end of the arc and the R value is the radius of the arc).

Use negative radius for arcs > 180deg.

If this option is checked, arcs whose included angle is greater than 180deg. will be output with a negative radius. (This option is only valid if Arc Mode is set to Radius mode).

Absolute Input

Normally, a G90 code is output to switch a machine into absolute input mode. In some special cases, e.g. for debugging plotter machine code or for non-standard machines, codes other than G90 will need to be output. This option is only available when the Custom Driver is selected on the General page of the Plotter Machine.

Relative Input

Normally, a G91 code is output to switch a machine into relative input mode. In some special cases, e.g. for debugging plotter machine code or for non-standard machines, codes other than G91 will need to be output. This option is only available when the Custom Driver is selected on the General page of the Plotter Machine.

Coordinate Options

Positive Coordinates Need '+' Sign

This option will insert a + symbol before every positive coordinate.

Adjust claw symbol origin

This option is only available for Marbaset Pick & Place drivers. It causes claw symbols to have their insertion points moved. The origin in the symbol is at the outer spike of the claw, and this is the normal insertion point, but this option moves it to the point of rotation.

Modal Coordinate System

This option suppresses a G90 or G91 (Absolute or Relative) code being output for every line.

Finish at Specified Coordinates

Selecting this option will cause the tool head to move to the coordinate specified at the end of the program.

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