[PSUBS-MAILIST] taper fit up

[hank pronk via Personal_Submersibles]

Tom,Not sure what you mean about indexing.  My original plan was to use the centre bore for the hatch release as a guide to rotate the hatch over the land with lapping compound.  The problem with that idea is, the hatch has to make a few trips back to lathe and getting it back to the exact location is pretty tough.  Then the centre is off a few thousandths.  I am struggling with the final .003  I can't seem to get it closer.  I think my lathe might be lacking the accuracy.  I know,,,blame the tools ;-)  I need to sleep on it, I have the blueing on the way.  If it was easy, everyone would be doing it.Hank
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