scooternut
Plastic
- Joined
- Nov 30, 2017
- Location
- Washington, PA
New South Bend 10L owner here.
I'm still learning proper setup and this old lathes quirks. I intend to do a 2 collar test later to help with a taper that I'm seeing over a long cut. The ways do have some detectable wear, but not horribly so, and the saddle does have visible wear on the underside. I have leveling feet on the way, I noticed that the rear leg is not in contact with the floor, so perhaps my question is premature.
Problem, see pic attached. The tool dug in to create that "thread" while returning with the carriage hand wheel. As if using the hand wheel moved the tool closer to the part. High speed steel from overseas, 10L14 1/2 round, 5c collet set up in the spindle, slowest speed and slowest auto feed, .003 depth of cut, cross slide zeroed and backlash removed.
What could be the cause of this spiral? Shouldn't the carriage return without backing off the cross slide? Sorry, I'm very new and learning all that I can.
I'm still learning proper setup and this old lathes quirks. I intend to do a 2 collar test later to help with a taper that I'm seeing over a long cut. The ways do have some detectable wear, but not horribly so, and the saddle does have visible wear on the underside. I have leveling feet on the way, I noticed that the rear leg is not in contact with the floor, so perhaps my question is premature.
Problem, see pic attached. The tool dug in to create that "thread" while returning with the carriage hand wheel. As if using the hand wheel moved the tool closer to the part. High speed steel from overseas, 10L14 1/2 round, 5c collet set up in the spindle, slowest speed and slowest auto feed, .003 depth of cut, cross slide zeroed and backlash removed.
What could be the cause of this spiral? Shouldn't the carriage return without backing off the cross slide? Sorry, I'm very new and learning all that I can.