A pack of ten 6-way hubs with associated ball connectors and wood screws and clamping metal work, which will enable you to add another layer to a regular 2v dome to create the 'Pod' structure.
Download the pod build instructions here.
Note that this doesn't include base feet or ground anchors.
You can see those here.
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Additional sticks:
To create the extra height you need 20x Shorts.
For the new base you need 10x Longs.
Here's how to calculate the door sticks:
Door Short = 0.422 x Diameter
Door Long = 0.466 x Diameter
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3.2m diameter pod lengths:
45x 900mm (Long)
50x 786mm (Short)
1x 1350mm (Door Short)
1x 1491mm (Door Long)