H
Hukshawn
Forum Guest
Register Today
15' sounds terrifying...
Turning soft jaws would not have made an ounce of difference in the job I was doing; If you can't hold onto it with a 24" 4 jaw chuck, a 3 jaw of any size is not going to help a bit. Using the round stock on the chuck jaws was at the suggestion of the old timers who were my bosses, some of whom would have started their trade long before WW-2, mostly in railroad shops.Not always true, tubular parts may be held internally with a chuck whilst held by a plug on the tail stock end, solid parts may be held in a chuck and tail stock to great effect and may be turned closer to the head stock end without the dog being in the way.
If one is concerned about the part walking in the jaws just turn a pocket in soft jaws for the job at hand.
This is a 6 1/2" OD 64" long steel tube held internally with a chuck and a plug that I made for the tail stock end, held .003 the entire length and the finish was excellent. At this size anything closer is best done on a cylindrical grinder.
Thanks I learned something in that video that I never thought of and didn't know... great tip on center drilling with the stock extended.That tom's techniques on youtube has a video showing what i'm thinking of. If the work piece is whipping to much to be safe you can start it up with the center drill in contact with the work which will suport it (i use a biger center drill if it's extended a long way) If you have a fixed steady that would be a good time to use it.
Stuart
whopps nearly forgot vid link