On 5 Mar 2007 12:14:32 -0800, Martin wrote:
One of them also has a rotary table under the X-Y table. It rides on
an enormous ball bearing, and has a lock.

I estimate that each of these other two bases weighs 350-400 lbs. I
had to buy a shop crane to lift them off the bed of my pickup, then
set them down and roll them into storage. It took two of us to lift
one edge up the required inch or so to get the wheels to step over the
entry ledge.

Martin, you are talking about big bucks, put all of this stuff on
eBay.

i