The cam mechanism is mounted on a carrier assembly, on which is mounted a rotary workpiece holder for positioning {HEAD ~ a workpiece} in {TAIL ~ relation} to a machining tool 
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The cam mechanism is mounted on a carrier assembly , on which is mounted a rotary workpiece holder for positioning { HEAD ~ a workpiece } in { TAIL ~ relation } to a machining tool
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH