I made this rotary table from 1-1/2" steel
plate, roughly according to the desigh by
George Thomas. Diameter is about 6". Very
handy for working on small parts.
The base has a raised circular boss almost
the diameter of the table itself. The table
is recessed to receive this boss. Table and
base are through-bored to take the large
pivot bolt, which I made from 1-1/2" steel
bar stock. The bolt head fits into a recess
in the top of the table. In a recess under
the base, there is room for the nut that
holds the bolt down: this nut is split and
has a small clamping screw. When the nut is
threaded on just right, the screw is
tightened up to keep it in place.
Around the table's bottom edge is a
dovetailed groove to accept clamping nuts
that can act as stops to limit table travel.
Around the edge of the table are four deep
holes, threaded just at the bottom. These
are for the tommy bar used to rotate the
table. On top of the table are four radial
There are removable pegs that fit into the
hollow center bolt, to aid in centering the
table under, say, a mill spindle.