I have a new D1-6 camlock spindle in my lathe. I was under the impression that a chuck was supposed to pull onto the taper to center it, but that the chuck would bottom against the face of the spindle. That is how it worked on my old lathe with a D1-4. Is that how it is supposed to happen, or is it just supposed to wedge on the taper?
When I put two different chucks on it, applying maybe 15 ft lbs to the locks, there is still a .001 or .0015 gap between the back of the chuck and the face of the spindle. The runout repeatability seems poor, which is sort of what I expect under the circumstances. Am I being too wimpy with the cam locks? How much torque should be expected to pull the chuck in? On my D1-4, it didn't seem to take that much, but it was smaller and perhaps worn in.
Also I don't have a proper key for the D1-6, the key seems like an odd size. I am about to make one up. Should it have a 6" handle? 12"? 3 foot breaker bar
?
When I put two different chucks on it, applying maybe 15 ft lbs to the locks, there is still a .001 or .0015 gap between the back of the chuck and the face of the spindle. The runout repeatability seems poor, which is sort of what I expect under the circumstances. Am I being too wimpy with the cam locks? How much torque should be expected to pull the chuck in? On my D1-4, it didn't seem to take that much, but it was smaller and perhaps worn in.
Also I don't have a proper key for the D1-6, the key seems like an odd size. I am about to make one up. Should it have a 6" handle? 12"? 3 foot breaker bar
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