I have two S3001 installed for my ailerons which are connected with a Y extension to my 127RDF receiver in Ch. 1. My transmitter is a 9CAP.
I get a different movement in each servo. Say in one of them I get a surface deflection of 1.5" up and 1.25" down. In the other servo I get 1.75" up and 1.5 down. It would seem that the up of the first match the down of the second BUT the other movement is completely out of synch within each servo and compared to the complentary movements.
I have used a new model in the transmitter and reset everything to be sure I started with a clean slate before attempting anything. Also, I made sure all the servos where centered.
I have checked the mounting of the servo arm in the splines, the mounting holes of the pushrods in the servo arms and the control horns. They are the same.
If I reverse the connection of the servos in the Y connector then I get the same servo acting disproportionately in the other direction.
I was able to minimize the difference in movements by setting a EPA of 50% in that channel, just for the sake of testing...
Any ideas? I would prefer not to have to mount the servos with a mix (say Ch. 1 and 6) and mess with the mix settings.
Thank you
PS: Is there a stop in one of the gears that prevent the servo from moving further or the movement in either direction is just controled by the pot?