On 2011-03-13, wrote:
On Sat, 12 Mar 2011 09:32:53 -0800 (PST), wolfgang
wrote:

[ ... ]

The diagram posted by DoN above illustrates the use and position of
the spacer bar/rod as discussed earlier.

If I am interpreting this right you can position a 3-jaw chuck in 60
degree intervals using this method. I do not see 90 degrees.

Use a 4-jaw chuck?

Perhaps (if the spacer is made just the right height) use on the
back ways on the other side of the same jaw? (That gives you 180
degrees from each front postion, or 60 degree steps.)

Enjoy,
DoN.

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