Just ran into a problem. The Oneway Taper Lok adapter is larger in diameter than the factory handwheel. The design of the PM2014 appears to use the hand wheel to tighten the bearings and spindle into place. From looking up the larger PM3520C manual, their spindle appears to have a nut that tightens it into place separate than the hand wheel. Anyway, the taperlok adapter tightens all the way until touching the headstock when then means the spindle can't turn. In looking, some of the other small lathe specific taperlok adapters appear to be reduced in size at the headstock end. Wondering if that is what I need. No way to turn this one down because of the bolt holes. Those others have a protrusion on that end.
Unless one of the other smaller lathes has the same thread size and the proper diameter size, I'm forced to switch to the rubber Chucky approach. Not sure what else to do but I've got this much invested so I need to find another solution. Ugh.
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EDIT: I went ahead and ordered one of the Rubber Chucky adapters for the PM2014, as well as one of their rubber seals for the Oneway 3-1/2" Vacuum Chuck. From what I can tell, there is no way to adapt the Oneway rotary piece to the PM2014 without a custom taper lock adapter being machined.