On Nov 26, 8:07 pm, mac davis wrote:
On Mon, 26 Nov 2007 10:45:34 -0800 (PST), wrote:

Or, they could just buy one of these.. lol

Mac, if you know of a supplier/manufacturer who stocks/makes such
chuck accessories covering the most common headstock spindle threads
please share your source. I personally haven't seen such an accessory
on the market. Of course one can get one's local machinist to knock
the accessory up at a price. All I was offering was the idea.

Exbrat

As I understood it, you wanted something to fit in your chuck, have a point and
tap stock to mark it, right?
I still like the link I gave you for a wall mounted one, but how about this:http://www.pennstateind.com/store/lcentqc1.html
I have one ordered, but just because I'm tired of taking the chuck off the
spindle just to do a few minutes of work between centers...

mac

Please remove splinters before emailing

No mac. A misunderstanding. I wanted something that centers the
workpieces quickly and accurately over a sharp spiggot, poised to be
hammered down onto it. The workpiece can be any dimension that the
four jaw chuck can take. The chuck does not need to be mounted on the
lathe. It is best lying it on its back on the work bench. The
technique shown in your link is one I have used for many years using
countersink bits for small workpieces and homemade parallel shaft
forked center for large workpieces.

Exbrat