Bill, first, there is zero deflection from the set screw, The machined thread tolerance is critical or the chuck would be useless in the first place. second, the set screw is not in the thread area at all. the threads are recessed at the back so the set screw touches only the shaft and not a single thread. third, set screws are used to hold all sorts of items tight on a moving shaft (pulleys and gears?) and if you are worried it would not hold or deflect, then put 2 in it instead.
Sorry, I probably should have pointed these out in the video. I guess not everyone has a 4 jaw chuck to check this out. I hope this puts your concerns to rest. thanks for the comments, Russ On Thursday, December 7, 2017 at 3:33:48 PM UTC-6, russ veinot wrote: > > you can see my newest video on youtube at: > https://www.youtube.com/watch?v=6g6wzIW1HvM > > it's about how to index and lock down the 4 jaw chuck to the head stock, > just like the locking index hub. you can then use custom face plates for > everything. > > all comments are welcome, > Russ > -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. Visit this group at https://groups.google.com/group/legacy-ornamental-mills. For more options, visit https://groups.google.com/d/optout.