Hi guys, might be a bit of a daft question but just wondering what the typical setup is for homing/axis direction on a moving gantry type router? I ask because mine currently looks like this (left hand rule coordinates?) shown in home position:
Click image for larger version.  Name: CNC Router Coordinate.png  Views: 214  Size: 561.6 KB  ID: 20479
But most CAM packages seem to use a 'right hand rule' type coordinate system where Y is in the opposite direction:
Click image for larger version.  Name: Aspire Coordinate.png  Views: 170  Size: 6.9 KB  ID: 20478Click image for larger version.  Name: SolidWorks Coordinates.png  Views: 163  Size: 137.2 KB  ID: 20480
Have I just got this wrong and simply need to reverse the Y motor in Mach3/home at the bottom right corner of the machine or is there another way of doing this?
Thanks.