I've a SB heavy 10 that's in need of a new chuck, I think. I've not had this lathe but a month, so I'm still in the process of getting to know it. But I had noticed that it's a bit touchy to get items of 1" or less to turn with less than .005" runout, but I could spin and jiggle the work around while tightening the chuck and come out close enough, at least I thought.
I started making a spider like one in another post from this sight by black85vette, I think, but using 5" round. I reversed the jaws and no matter what I do the runout will get no better than .020". It has two piece jaws, they're numbered, but I tried moving them around, no good. The chuck is a Skinner and the outside of it runs true along with the hub the chuck mounts too.
I even asked one of my helpers what I should consider as a fix to my problem. Well as you can see, his answer will always be correct.
I started making a spider like one in another post from this sight by black85vette, I think, but using 5" round. I reversed the jaws and no matter what I do the runout will get no better than .020". It has two piece jaws, they're numbered, but I tried moving them around, no good. The chuck is a Skinner and the outside of it runs true along with the hub the chuck mounts too.
I even asked one of my helpers what I should consider as a fix to my problem. Well as you can see, his answer will always be correct.