Does anyone know where you can get jigsaw blades for wood where the teeth
are not in a parallel line with the direction of blade motion?
I ask because I do not have a pendulum jigsaw, and this tooth arrangement
would have the same effect.
No, just a few degrees. That way, only a few of the teeth will be in
contact with the wood, so there would be less friction, so the blade would
not heat up as much, and the reduced friction would result in the blade
I have used down stroke cutting blades. I would think teeth lined up at 90
degrees to the angle of movement would require even more force to hold the
jigsaw down <g>
How do you mean "are not in a parallel line with the direction of blade
A saw blade works by pushing the material it loosens, out to the sides of
the cut. So teeth on the blade have to be made with an offset angle, like
little chisels, to make sure the material you're cutting doesn't get jammed
in the edges of the slot the blade is making.
Imagine the tip of the blade is slightly thicker (front to back) than the
"jigsaw end". Or that the line of the teeth from jigsaw end to blade tip is
slightly sloped in relation to the back of the blade.
On the down stroke, only the tip of the blade is touching the wood. As the
blade moves to its full travel, the jigsaw will be moving forward (if you
are pushing on it). Then, on the up stroke, the thickness of the slant is
On a non pendulum jigsaw, the blade is all in contact with the wood on the
down stroke, and you are pushing on it, making more heat, and slowing the
Surely this will only work properly if you can syncronise your pushing with
the relevant stroke. i.e. you'd need to push the jigsaw forward on the
downstroke to take up the 'slack' and then stop to allow the blade to do the
work on the upstroke.
I understand what you're suggesting, but if you're pushing forward on the
downstroke at least part of the blade will still be in contact with the
wood. Also, if you're pushing forward on the upstroke all of the blade will
remain in contact with the wood.
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