On Wed, 06 Jul 2005 10:48:34 GMT, Ken Sterling (Ken Sterling) Ken wrote:

I have an "indexing ring" on the bullgear directly behind the chuck on
my lathe (Atlas 12") with 60 holes. Every 15 holes, scribe a line
across the 6" circle you have. You may not have the indexing ring on
your lathe,

If I do, I haven't noticed it. It's a Rockwell 14", mostly like this:
http://www.lathes.co.uk/delta%20metal/page3.html
So, as long as I can use the degrees marked on the chuck, and lock the
spindle at the right points, I should get good accuracy in my marks.

Thanks,
Dave