Truss hub and parts with variable configurations

1. A truss hub device, comprising:

a first interface portion, having a circular outer shape, a second interface portion spaced from the first interface portion, having a circular outer shape, a plurality of different connection parts along said circular outer shape, the connection parts connected to and between the first and the second interface portions, wherein each of said connection parts being along said circular outer shape, each of said connecting parts having upper and lower attachment pins,

a first attachment piece connected to at least first and second of said different connection parts on said hub, said first attachment piece having first and second truss connection interfaces which are sized and shaped to attach to a first structural truss, and said first attachment piece having a first plate, connected between and attached to said first and second connecting parts, said first plate having a flat surface extending between said first and second connecting parts, the flat surface having spigot pins extending therefrom attached to the attachment pins of the connection parts, and a stiffener plate, having a surface oriented perpendicular to the flat surface of the first plate, and extending at least partway between said first and second connecting parts and stiffening a connection between said first and second connecting parts;

a second attachment piece having spigot pins, the second attachment piece connected to at least third and fourth of said different connection parts on said hub, the spigot pins of second attachment piece connected to the attachment pins of the connection parts, said second attachment piece having first and second truss connection interfaces which are sized and shaped to attach to a second structural truss and said second attachment piece having a second plate, connected between and attached to said third and fourth connecting parts, the second plate having spigot pins extending therefrom attached to the attachment pins of the connection parts, and a second stiffener plate, oriented perpendicular to the second plate, and extending at least partway between said third and fourth connecting parts and stiffening a connection between said third and fourth connecting parts, and wherein an angle is defined between said first and second structural trusses based on which of said connection parts connected said connection pieces.

2. A device as in claim 1 , wherein said interface portions each have enough holes to hold at least 8 different pieces truss to said interface portions portion.

3. A device as in claim 1 , wherein said interface portions are each formed in multiple separate sections that are connected together.

4. A device as in claim 3 , wherein each of said sections define substantially a quarter of a circumference of said circular outer shape.

5. A device as in claim 1 , further comprising said first and second structural trusses, each of said first and second structural trusses having at least first and second tubular supports, with structural connections between said first and second tubular supports.

6. A device as in claim 5 , wherein each of said trusses is connected to said periphery on the device at first, second and third separate locations.

7. A truss hub device, comprising:

a first interface portion, a second interface portion, having a circular outer shape, a plurality of different connection parts along a circular outer shape and connected to and between the first and the second interface portions, wherein each of said connection parts being along said circular outer shape, said connecting parts having upper and lower attachment pins,

a first attachment piece connected to at least first and second of said different connection parts on said hub, said first attachment piece having first and second truss connection interfaces which are sized and shaped to attach to a first structural truss, and said first attachment piece having a first plate, connected between and attached to said first and second connecting parts, said first plate having a flat surface extending between said first and second connecting parts, the flat surface having spigot pins extending therefrom attached to the attachment pins of the connection parts, and a stiffener plate, having a surface oriented perpendicular to the flat surface of the first plate, and extending at least partway between said first and second connecting parts and stiffening a connection between said first and second connecting parts;

a second attachment piece, connected to at least third and fourth of said different connection parts on said hub, said second attachment piece having first and second truss connection interfaces which are sized and shaped to attach to a second structural truss, and said second attachment piece having a second plate, connected between and attached to said third and fourth connecting parts, the second plate having spigot pins extending therefrom attached to the attachment pins of the connection parts, and a second stiffener plate, oriented perpendicular to the second plate, and extending at least partway between said third and fourth connecting parts and stiffening a connection between said third and fourth connecting parts,

said first and second attachment pieces connected to said trusses to form a specified angle between said trusses.

8. A device as in claim 7 , wherein said interface portions each having a circular outer shape.

9. A device as in claim 8 , where each of said connection parts being along said circular outer shape, and allowing connecting a straight portion to said circular outer shape, and wherein each of said connection parts allows connecting said straight portion to face at a different angle relative to said truss hub device.

10. A device as in claim 7 , wherein said interface portions allow connecting additional different truss pieces to said interface portions.

11. A device as in claim 8 , wherein said interface portions are each formed in multiple separable but connected sections.

12. A device as in claim 11 , wherein each of said sections define substantially a quarter of a circumference of said circular outer shape.

13. A device as in claim 7 , further comprising said first and second structural trusses, each of said first and second structural trusses having at least first and second tubular supports, with structural connections between said first and second tubular support.

14. A device as in claim 13 , wherein each of said trusses is connected to said periphery on the device at first, second and third separate locations.