of the six 6 first circumferential ring members 14 are connected at a first end to a radial member 16 at a point along the radial member 39 s 16 length and at a second end to an adjoining radial member 16 at a point along the adjoining radial member 39 s 16 length each radial member 16 is connected to its two 2 adjoining radial members 16 at a midpoint by first circumferential ring members 14 and at its second end by second circumferential ring members 12 thus there is a u201c double ring u201d about the center piece 20 in the floor structure of the hexapod 10 however it is anticipated that a second embodiment of the hexapod 10 could be constructed without the first circumferential ring members 14 leaving only a single outer ring the point at which the second and of the radial member 16 connects with the second circumferential ring members 12 is the lower joint 28 connected at the lower joint 28 and extending upwardly or at generally a right angle from the plane of the floor from the floor structure of the hexapod 10 may be a upright member 24 the upright members 24 are used to support upper circumferential members 22 and a ceiling structure 38 while an upright member 24 they be attached at each lower joint 28 is anticipated that some lower joint 28 may not have an attached upright member 24 in order to.