Cutting notches
Did they actually ban dado sets though? or just specify a maximum stop time?
Both.
Industrial woodworking machines have a maximum time for the blade to come to rest, and this applied retrospectively, hence many machines with DC braking retrofitted.
I think dadoes were also banned in industry (i.e. you had to discontinue using them), *and* a maximum length of arbor specified for all new machines sold.
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