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My bandsaw follow and cut a straight line, but vertically, it almost immediately shifts the bottom part to the left and cuts a weird angle where the cut i'm making on like a 10" tall block of foam ends up being almost 1/4" left of where it is at the top, with the line I'm following. and it's not the angle of the table. Once the cut is done, the blade shifts back into place and holding up my 10" piece to it shows a large gap between the top part of the foam and where the blade is normally.

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    Are the teeth worn on one side or blunted?
    – Solar Mike
    Sep 12 '19 at 18:58
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    Try increasing the tension on the blade and check the guides.
    – JACK
    Sep 12 '19 at 19:12
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    Any way you can do this with a hot wire instead? If you slow the feed down, does it improve? Sep 12 '19 at 20:17
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    I would definitely check the guides and tension. The blade should not be able to move over that far without snapping.
    – IronEagle
    Sep 12 '19 at 20:54
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Check your lower blade guide. Blade guides are either blocks or small roller bearings. To be out that much, I suspect that someone didn't reset the guide after the last blade change, or perhaps the block has fallen out.

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