Always a popular topic.
Swapped my original plastic handwheel after it broke at the hub, made an aluminum large replacement.
Then got around to fit on a graduated ring, engraving done with an #ESI?
Interesting, one complete turn moves the saddle 19.07? mm, that is why the grad collar reaches 19.not as you would expect 20?
This graduations on the handwheel was very useful as a guide in the past, but now has become secondary, but 3 years ago I fitted a DRO?s? on the X and? Z axis.
but no DRO on the Y axis as i do not have a compound slide anymore.,?IMHO not necessary with the ELS fitted.A real flimsy design.
Also a few years ago, I dumped the knuckle buster X and Y axis handwheels IMHO ( an awful design) for the larger conventional round types.
from the photos, Note the feed screw covers, these really work out well keeping the chips and crud off the split nuts.
Some Real Bull lathes shipped to Australia, this was a standard fitting, but got mine through Amadeal UK.
Hope of interest.


--
John