a softer set screw wouldn't hurt if it makes you feel better. I can't
speak for head stocks on all LOM's but mine seems to be hardened. i see no
marks on the surface as of this morning. the set screw touches the surface
beyond the threads so it is getting a good bite without having to over
Your runout results are interesting. YMMV (your mileage may vary). My only
concern about using a set screw for the average Joe, is that a cup point is
used. The holding power would be excellent, but it will damage the spindle by
biting into the spindle. A small circle is embossed in the
Tim, thanks for your comments
I agree the locking collar with a pin is an excellent idea and effective.
I said awhile back (I think on my face plate video) that a 1"-8 TPI nut cut
down to make narrow to fit on the head stock threads would be an adequate
solution. You pin idea on the locking
I have to agree with Bill on this one. A better solution is to use a 1"
locking collar with a dowel pin that mates to your chuck. For example part 801
on this page.
http://lignolathe.com/en/face_plate_system/index.htm
The collar gives the chuck a place to seat and the lock collar prevents
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
For the first time I have to say I’m not fond of this idea you need the chuck
to lock up tight to run true loosened the chuck can run out slightly and also
if the grub screw screws down on the headstock thread it would damage it.
Perhaps a brass grub screw might help but the run out of the
