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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Lathe with threaded spindle - chuck centering repeatability
I just finished a cast iron adapter plate that
mounts a plain-back 5C collet chuck to the 2"-8 tpi spindle of my lathe. I can easily dial in the mounted chuck to .0005" runout, the limit of my measuring capability. When I remove and reinstall the chuck/adapter plate assembly and check the runout, it varies from .0005" to .004". It only takes a couple of minutes to mount the indicator, loosen the bolts and recenter the chuck, but I was hoping for a little more repeatability. Am I asking for too much here? |
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