It was an apx 5 hour cut. The switches went mad only in the last 10 min profiling cut. In fact I could not finish it, so I cut the work on the tablesaw.
I assume a noise issue would be persistent all the time, but who knows. I was lucky I was watching it and had pressed the estop quickly, as after a trigger, pressing reset, restarting the spindle and pressing cycle start (which in this case should continue the cut from where it stopped), well, after that, the cutter went straight through the work in a perpendicular direction, no idea where it was planning to go, messing up fortunately, only 3mm on one edge, which I managed to sand and fix.
I.ll do on monday some experiments, to see if it was just for that cut, or was just the starting point of triggers, check the connections and all.
It very well may be noise, but at this moment, my personal opinion is that the limits used as homing, due to the rough contact with the metal components and dust, malfunctioned. The levers are already bent, and I did get some differennt homing refferences. Might be a a loose connection, as Rob said, which causes some noise and all kind of trouble. MIght be somthing else. Who knows.
Anyway, any recommendation about homing switches types?