This is a large 20-metre dome made with pressed poles, not our usual hubs. If a structure is not to be moved frequently then basic pressed poles can be utilised for cost savings. Naturally, this fastening method significantly increases install/removal times and labour costs.
At Lotus Domes UK we have an engineering facility with the correct tooling to press the tube end to minimize stresses. See our engineering page for more details.
We recommend engineered hubs for any dome where high strength and ease of assembly are important. See our dome hubs page for full details.