Thread: Makita drop saw not making a clean cut

The blade rub below the toothline indicates that the plate is warped. The teeth of carbide blades are wider than the saw plate and a newer blade shouldn't show any signs of contact with the workpiece.

This blade, shown during re-sharpening, has no scuffs inside of the toothline and it's been in use for a year or so.

60t blade on the grinder.jpg

As the blades get older it's typical to get some scuffing due to inadvertent movement of the workpiece during the cut or on withdrawing the blade as on a miter saw or, if the blade is very dull, the dull teeth will tend to pull the workpiece against one side of the blade or the other, particularly on mitered cuts.

Hell no. I've had 2 chop saws go exactly that way. In both cases, one of the rollers in the arbor shaft bearing has flatted.
Why that happened is anyone's guess. They cut OK until the flat comes around and kicks the blade over for the ridges that you see.

Your blade is fine. Your saw is fine. You need to get the shaft bearing replaced.
In my part of the world, $50 and its a done deal, as smooth as silk.

Could be but if so wouldn't the rub marks be in more than one area of the blade since it has been on and off of the saw a couple of times? If a bearing is out shouldn't both blades be showing rub marks?

Do you have a dial gauge? I would turn the blade by hand with a dial gauge to see where the run out is coming from.