- Joined
- Jul 2, 2014
- Messages
- 7,594
It looks like the handwheel should have been marked .48, .52, .56, and then there is a half distance interval that would be .58. If it is truly supposed to be .60 then the entire graduation is wrong.This is the carriage feed, they are usually something odd in terms of distance per revolution.
It actually moves 0.600" per revolution, not 0.58". So 2.424" would just be 4 turns + 6 ticks.
The pic does not show that the minor ticks are 0.004", and 0.020" per major tick.
I admit it is odd, but if you are smarter than the machine it is not difficult.
It is really impressive how smooth and precise the carriage wheel it on this lathe
It is not about whether you are smarter than the machine, it is about how many parts end up in your scrap bin due to confusion resulting from poor design. This is not a metric conversion issue, the rack is pretty obviously imperial. For less than one revolution it works OK. I can go three turns of .55, 1.10, 1.65 on MY 13x40 import lathe, and then add seven .005 graduations to reach .200, but it is quite easy to screw that process up. It is just poor design. On my mill I crank the X handle around one full turn for .200, five full turns for an inch. Stick a fork in me, I'm done...