Hi again
I forgot to tell you what works really good for a back plate. Bison
makes unfinished back plates for an Atlas lathe with the 1 inch 10
or 8 thread. These back plates come in 3 4 and 5 inch sizes. I
have gotten the two I made up off eBay and I think I got the last
one for $15 so keep a look out for one. These are really nice cast
iron adapter plates that make up a nice one for a Dalton. I have
used these three times now and they work very well. If I thread one
for you when you get it back you can complete the machining to fit
your chuck on your lathe. This way you will have the most accurate
chuck you can get. If I fit your chuck on my spindle it may or may
not fit yours the same. I always like to fit the chuck to the back
plate on the lathe it is going to be used on.
I will put a couple of pictures up in my Yahoo Fliker picture file
site so you can see how it's done. These are shots of the work on
John Glands lathe as I fit the back plates for his new chucks. Here
is the link to that site.
Turk