Posted by john fletcher 1 on 15/06/2017 18:26:56:
Is the thread on a Myford Metric super 7 cross slide metric and if so, what is the size/details. Also what does each division represent in terms of metal removed. John
Good question! I'll stick my neck out and say that the average lathe owner couldn't answer the question without checking it physically.
On my metric lathe (not Myford), all I know is that the small divisions on the micrometer dial represent a reduction in diameter of 0.02mm. 0.02mm is just under a thou and this seems typical of the minimum graduation on most lathe micrometer dials. (I have now put on my tin hat in the expectation that an expert will be putting me right!)
Myford give different Part numbers for the metric cross-slide screw, dial and nut, which strongly implies they're using a metric thread.
The easiest way to find out is to measure it. Stick a rod in the chuck and measure it's diameter with a micrometer. Remove one dial turns worth of metal and remeasure the diameter. Now you know the number of graduations needed to remove a known amount of metal. It should be close to something metric.
Dave