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).
Split circles into 2 arcs
This option is only available when using Radius mode. If checked it will cause full circles to be split into 2 semi-circles before output, otherwise Centre mode will be used for full circles. This is because it is not possible to uniquely define a full circle using 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.