Hello everyone:
I'm a noob here and need to get some advice on an interesting issue with my 3 jaw chuck. Bought a used (2 - 3 yr old ) G0768 lathe in what looks to be pretty good condition, with all the original accessories. Started working on some 2 1/8 inch diameter aluminum bar stock - no issues. Especially after going through the usual cleaning, oiling, and adjustments.
it runs smooth! Next I put a pc. of 1 inch diameter aluminum bar stock in and it was spinning with a major amount of run out right at the jaws. Put the 2 1/8 inch pc. back in, which uses the next larger set of clamping faces on the jaws and no noticeable run out. So apparently the inner-most clamp points of the jaws were not machined accurately from the factory. Fortunately the alternate jaws - the inside diameter jaws - look/work great on the 1 inch diameter stock, so I'm back in business but, my question is - can the O.D. jaws be corrected somehow or do I need to buy new jaws if I want then to be "correct".
Hope this gibberish makes some sense, and thanks for any suggestions you might have.
Terry
I'm a noob here and need to get some advice on an interesting issue with my 3 jaw chuck. Bought a used (2 - 3 yr old ) G0768 lathe in what looks to be pretty good condition, with all the original accessories. Started working on some 2 1/8 inch diameter aluminum bar stock - no issues. Especially after going through the usual cleaning, oiling, and adjustments.
it runs smooth! Next I put a pc. of 1 inch diameter aluminum bar stock in and it was spinning with a major amount of run out right at the jaws. Put the 2 1/8 inch pc. back in, which uses the next larger set of clamping faces on the jaws and no noticeable run out. So apparently the inner-most clamp points of the jaws were not machined accurately from the factory. Fortunately the alternate jaws - the inside diameter jaws - look/work great on the 1 inch diameter stock, so I'm back in business but, my question is - can the O.D. jaws be corrected somehow or do I need to buy new jaws if I want then to be "correct".
Hope this gibberish makes some sense, and thanks for any suggestions you might have.
Terry