Live center help!

[Ricc Havens]

Phil, I still have the problem.

[Karl Loeblein]

I wonder if a flat ribbed or a copper crush lockwashers (not a split washer) might keep the cone from backing off without resorting to Loctite.

[Marvin Hasenak]

I made these a different way, I first drilled and cleaned out the inside as above. I made a plug that fit the inside of the hole that was threaded on to the lathe spindle. The blank was slid on the plug and then turned, I used a regular live center to keep the blank from sliding off the plug.

Basically the wood plug worked as a jam chuck to hold the blank. Drill and tap a 3x3x10 blank and screw it on the spindle, turn to inside diameters of the cup blank. The only parts of the plug that were critical were the bottom diameter and the top diameter. I also cut a 1/4" wide groove top to bottom to prevent any vacuum suction problems.