“Since I was not running anywhere near maxium torque in any of my tests, the current I measured for two motors is consistent with the above”
the motors aren’t running out of their intended specs, but I do believe the board set can’t deliver what the motors want via what the tach sensor is telling the board set to do …..the tach sensor doesn’t care if the board set eats itself alive trying to feed two grown adults vs. two small children…..all it knows is more, more, more….meanwhile, the board set is just like Scotty on Star Trek, …..” I’ve given er all she’s got Captain!” …”She’s gonna shake herself to pieces!” ….
Pat