I have a sharp 16-40l its been sitting for 5 years(not used) its 8 or 9 years old, we only used it for chamfering bars for our cnc lathes or an ocassional goverment job.
so I needed to do an Id thread the other week in alum., the finish was terrible, burrs everywere to run a clean up pass it made it even worse.
first thought was the usual operator error, tool problems blah blah blah, everything checked out fine. so in playing with this for a few days I am thinking its slop in the z axis? I did put the z lock to it slightly when it was feeding but it didnt make a difference in the thread.
is there an adjustment? the z axis doesnt feel sloppy ( I tightened up the x axis just to be sure it wasnt the x)
I tried other thread pitches both metrix and standard they all come out the same.
I used to do threads on gun barrel for it with no problems or a fixture for the mill but that was years ago.
I have no clue about manual machines on what to look for when it comes to tuneing up so to speak, on cnc's I can do anything as far as repair, Plus I have no maintenance book on the sharp.
anyone have any idea's?
Thanks
Delw