I think
@erikmannie made a bunch of those.
I made four MT #6.5 dead centers for my PM-1660TL.
It was not a difficult project. I chucked up some 3” round stock (1018, 1045, and then 4130PH) in a chuck & turned the taper. At that point, the tailstock was supporting the end of the workpiece with a live center.
After I got the taper to where I wanted it, I used the compound to cut a 60° taper for the tip. That was a lot of cutting!
Part it off & you’re done.
I was surprised how forgiving the spindle nose was for variations in my work. I was sure that I had cut too steep of a taper on the first one, but it held just fine in the spindle nose. After making four dead centers, I really nailed the angle on the last one, and it seemed to work no better or worse than the first dead center that I thought I had butchered.
As everybody knows, a Morse taper dead center is held really tightly in the spindle nose after working with it. I put a dowel through the pass through hole, and knock out the dead center by tapping the dowel with a BFH. One time, the dead center got past my right hand and fell on the ways, which was awesome. I had a foam pad down there, but apparently the foam pad wasn’t big enough.