YorkshireMartin":2p1uavha said:
Ah I see. The issue with the table is not a bend as such. It's more like its been worn down. Think a channel/cradle worn into the top. To flatten the support structure would have to be moved, otherwise you'd have a void directly above where the dips are when flattening and just crush the support pieces. It's hard for me to explain and kinda difficult to photograph.
I think on balance, the only way forward is to create some kind of new top. Looking at doing something with plastic as I seem to struggle in finding ply which is flat enough for this purpose.
Maybe a daft idea, but could you attach a not-too-thick sheet of hardwood to the top, then (with the blade removed) skim it flat using a hand plane. It doesn't need to be micron flat - that's not really necessary for a bandsaw; flat enough that it looks OK against a rule would be acceptable.