Hello. I am in the initial stages of converting my Terrco Northstar carver/duplicator to CNC operation. The unit has two 1hp spindle drives and is manually operated at this point. The stylus on the left is used to follow a workpiece (such as a guitar body) and the machine carves up to two copies. The table top is removable to access a spindle mechanism that allows full 3D duplication of objects, such as gun stocks or wooden decoy ducks. There is a manual crank on the left side that rotates the mechanism. My goal is to convert this machine to CNC by moving the stylus with a 2ft by 4ft gantry. I have looked around for information and am overwhelmed by the options. Has anyone done a similar conversion? Any help or advice is much appreciated. Thanks.