Precise Z positioning of camera by using spot laser

The Video camera plugin in Mach3 is extremely powerful tool - you can position the tool precisely and quickly over the desired location of the detail. By knowing the distance between the camera cross hair and the spindle centre we can quickly switch between these two positions by using simple scripts (attached to the project). The camera is fixed to the CNC spindle head and if using objective with long focal length it's possible to get decent image magnification from distances of 100-200mm to th