Right, to the problem with the attaching files:
there is no button to attach files here, so i tried dragging into the text box. it does come green and explain where to drag it to but it never uploads.
to the problem:
this sound comes from all joints as if the brakes were still engaged or partially engaged.
I have had this same issue with the previous RB boards i had to replace but if the same problem keeps coming back i would like to know what would cause this specific part of the board to keep getting damaged, because just as you said all i can do for now is keep swapping the boards which would temporarily solve it but the root cause is still there somewhere.
also, as i have replaced a number of components (AVR, KP,1RA) i understand these are not the causes for such fault on the RB board and would like to know if there would be anything else.
As far as my understanding goes, the other things that might have a connection would be current fluctuation from the motors that would, at some point cause a disturbance on the electronic circuit of the board causing it to malfunction to the point that eventually would become this fault, or something along these lines which would even include the power unit (1KQ(?) board).
At first the noise would come before any fault occurs, even allowing movement, thus the trembling happens, mostly on the long axis (2 and 3), evolving to overload or speed errors while moving (not always on those long axis).
but it also goes on to the point where the simple fact of the controller be switched on the errors of overload would come up straight away.
