Tom, do some searching on taper attachment on our forum. We beat that issue pretty hard a few times. Bottom line is its really lathe dependent. The 'easy' part is the bar attachment at the rear of the lathe. any people make their own. Where things get machine specific is how to disengage the cross slide during taper following mode. Most of the typical Asian machines require a special lead screw, lead screw nut (equivalent) & maybe even different dial assembly parts. Some are kind of a engage/disengage principle, others are telescoping. If you happen to have a lathe already setup but just no attachment, that would be considered score. I've noticed most of the current Asian lathes now come with everything complete, no screwing around. I wish mine did or I knew better at the time.