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Help with LPT section. I am assembling the LPT turbine section and once I slip the LPT casing on the rotor starts binding. I've sanded down the casing and the LPT stators (all stages) (including inner hub) with no luck. It'll bind and when I connect the flanges and very lightly snug it up it'll seize completely.

Does anyone have any tips on how to get the LPT rotating freely (I really need my N1 rotation :P)?

I'm wondering if I could get away with resizing the case in slicer by 0.5% and maybe lower the hub or something...(I'd be willing to try that but low on the case filament so I don't want to trial and error too much)

That said this is a great project and I'm loving it.