Here’s my miter gauge. It’s the same as yours except for the blue cam clamps. I was nibbling out a half lap joint using a stacked dado head and didn’t realism that the red extrusion was loose. I caused a brake fire on my SawStop. New brake. New stacked dado set. It was my mistake but I wanted to make it more obvious when the extrusion is loose.
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here’s what goes in that slot.
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