G'day all.
My machine may be a Real Bull, which may explain many of my posts!
More variations. The RBM machine (probably mine) has two lock nuts on
the compound feed screw to provide adjustment of the bearing
backlash??? They bear on the dial and so effect that as well.
This also may explain why the 50 division dials I bought from LMS
don't fit. The internal diameter is 12mm whilst my feedscrew shafts
are 10mm diameter.
The fix will not be difficult. For the cross slide I intend to turn
up a bush, 10mm internal and 12mm external make a saw cut along the
bush. I can cross drill and tap the dial 6mm (as per my existing
dial) and use a set screw to adjust the friction with the shaft. For
the componud I can make a similar bush but with a collar at the
inboard end. The dial can also be cross drilled and also have a
recess for the collar of the bush bored out, the existing lock nut
can press against the outboard end of the bush.
Why the 50 div dials? because I work in metric and the Thou divisions
are a pain, you have to calculate for evey adjustment.
Please join the game of "spot the difference."
One good turn deserves another.
Regards,
Ian
