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Awesome thank you. I'm considering spans of 1m in both X and Y directions but am thinking about getting tube with a Wall Thickness of 1.5mm to keep the weight and inertia down.

Allted, Ireul, do you think a WT of 1.5mm is strong/stiff enough for 1m spans, or should I go 2mm? I may go 1.2m spans if I have to buy a 6m length.