Hi folks,
Looking for any information I can on the proper procedure to realign the headstock on an early 80's (~'83) LB-15 lathe. Machine has cut a taper ever since I got it. Found the turret out of whack among other things. Was able to get the turret back into line somewhat but still not great. The out of line condition is such that the further out from the head stock, the larger the diameter.
Also have problems trying to hold tight tolerances on 2 different diameters. For instance, with tweaking to offsets I can hold a 1.5" diameter to a tolerance of (~+-.0005" or less), but a 2" diameter will be off by several thousandths. End up setting my parts high with the offsets, and then tweaking the program and offsets several times to bring the diameters and taper into spec.
As far as taper, without the tailstock, about .002" -.003" in 5in. Slightly less when using the tailstock.
Right now I have no work and just need to take time to do maintenance. Should have plenty of time on my hands for the forseeable future.
Thanks