Quote Originally Posted by David Somers View Post
...................aren't the chucks normally in place with a Morse Taper?
They are occasionally, although some sort of screw mount is more common. However it is very common for the tail stock to have a morse taper.

Quote Originally Posted by Dan Hintz View Post
The need to remove the chuck is relatively rare,
It is my experience to be the opposite.

For me at least, removing the chuck to fit another type of holding fixture is a regular occurrence.

I tend to engrave all sorts of objects in the rotary and a chuck is great for some and inadequate for others.

The best chuck mounting method in my opinion is one that lends itself to easily making up and quickly fitting a variety of work holding fixtures as required.

Greolt