On 27 Jul 2004 14:02:53 EDT, Mark and Kim Smith wrote:
Dave Hinz wrote:

OK, I'll freely admit that I misread this. BUT - a lathe head has
two sides, does it not? If the centerline of the spindle is more than
2' off the floor, then you can turn something as big as you want.

So now I'm thinking either a 2' - 4" plywood disc template to run the
router around using a collar or a template / jig that pins at the center
that enables me to swing the router on the 1' - 2" radius. And sorry,
no lathe in my gar.... er, shop so that's out.

Actually, I just did something similar to this with a router. Need a 4'
hole in a floor (fire station, opening for a pole). I took a piece of
plywood, nailed through that into the center point of the future hole,
and used that as a compass-type tool to swing the router around while
holding a constant distance from the center point (e.g. a circle). You
could do that, start with the outside one, then change the distance to
do the inside one. No muss, no fuss, no template even. Circles,
those are easy. Does that work for you?

Dave Hinz