david bennett 8 | 18/05/2020 12:53:02 |
245 forum posts 19 photos | Luke, thanks for clarifying that. All lathe noses have different errors. The whole purpose of the chuck backplate is to allow you to eliminate them . (Except the axial play - that is adjusted by the threaded collar at the rear end of the headstock ) For a full description of truing the backplate, see Tony's famous website "lathes.co.uk" the article "fit a new chuck" Regards, Dave. |
david bennett 8 | 19/05/2020 12:56:30 |
245 forum posts 19 photos | Luke, something you said there made me think the term "repeatable" may be being misunderstood. Do not expect that you can remove a piece of work from the chuck and then replace it and have it run true. Turn a piece of work true. Do not remove it from the chuck. Remove/refit the chuck with the work still clamped in the jaws, if it then runs true it is repeatable (apologies if you knew that) Dave. |
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