First I would like to say hello as this is my first post on this forum. I have enjoyed reading a lot of topics here for a while. I live in NC and shoot 600 and 1000 yd. br and am open to any type of trigger pullin.
I purchased a small Grizzly G4003G lathe for turning my own barrels and my question(s) or concerns are what tolerances do you set the lathe up to?
I first installed the stands and removed any soft foot, then mounted the lathe. When I shot the ways for level there was a 0.024" rack. I shimmed out the rack under the feet 0.001" then found a 0.004" belly in the bed ways. I think I can get most of that out at the feet on top of the stand under the head stock. Do I have to?
I can think of what may be a series of issues if the tail stock doesn't remain coincident through the travel. Is there a better way than another to chamber to not have to worry about this? Wouldn't this be a concern if I chamber between centers or through the head stock?
Notes, I did a quick check of the head stock to tail stock with a rotalign and adjusted it close for square but ran out of time, did not get it for level. I think it said I need to make a 0.008" change in the back for level, but there's no adjustment for that. I can drill and thread for an adjusting piece if necessary. How close do you have your tail stock in line to your head stock (and through out its travel)?
When I return home I will try to finish it with optics because my company has our rotalign on another job.
I bought the book John Hinnant writes for barrel fitting and so far, half way through the book, he shows everything between centers.
I know this is a potentially pompous post but I could use some help.
More questions to come, my machining experience is little, my machine installation experience is fairly large, mostly gear boxes and bearings.
Thanks, Jim
I purchased a small Grizzly G4003G lathe for turning my own barrels and my question(s) or concerns are what tolerances do you set the lathe up to?
I first installed the stands and removed any soft foot, then mounted the lathe. When I shot the ways for level there was a 0.024" rack. I shimmed out the rack under the feet 0.001" then found a 0.004" belly in the bed ways. I think I can get most of that out at the feet on top of the stand under the head stock. Do I have to?
I can think of what may be a series of issues if the tail stock doesn't remain coincident through the travel. Is there a better way than another to chamber to not have to worry about this? Wouldn't this be a concern if I chamber between centers or through the head stock?
Notes, I did a quick check of the head stock to tail stock with a rotalign and adjusted it close for square but ran out of time, did not get it for level. I think it said I need to make a 0.008" change in the back for level, but there's no adjustment for that. I can drill and thread for an adjusting piece if necessary. How close do you have your tail stock in line to your head stock (and through out its travel)?
When I return home I will try to finish it with optics because my company has our rotalign on another job.
I bought the book John Hinnant writes for barrel fitting and so far, half way through the book, he shows everything between centers.
I know this is a potentially pompous post but I could use some help.
More questions to come, my machining experience is little, my machine installation experience is fairly large, mostly gear boxes and bearings.
Thanks, Jim