You don't know how much metal is actually "welded" in your existing switch. It may be enough to run the saw when you're not feeding a workpiece - i.e. when the motor is running with no load against it. That's a fairly low current situation. Now feed a tough piece of wood into the saw and watch the amperage jump up as the motor strains. That might re-melt the switch - blowing the "weld" like a fuse. Or it might just create excess heat in the switch box which could have other consequences.
It's safer to bypass the switch entirely. Solder and use heat-shrink tubing to cover the splice. And it's safer for other folks as LCHIEN noted.
mpc
It's safer to bypass the switch entirely. Solder and use heat-shrink tubing to cover the splice. And it's safer for other folks as LCHIEN noted.
mpc
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