I've got a solid old Craftsman 12" bandsaw and it works great for most things. But I've been trying to use it to mill small logs into boards and having a really hard time making a straight cut, because the blade bends. I'll try to push an outer arc of, say, a 4" diameter log through the blade, but instead of staying in the plane of its rotation, the blade bends sideways into the wood and makes a mess of the cut. This happens even if I screw the irregular log to a regular piece of lumber running along the fence, so I can ensure a straight pass through the blade.
I think the tension on the blade is high enough. I guess maybe the blades are too thin for this, but I'm not sure if that's the problem.
What could I be missing here?