i’ve noticed that servos hum when under load… I am building an arm with the SES, i am using the dual servo bracket and a c-bracket. This is all thats hooked op for now… so there shouldn’t be any load on the servos… however they hum… I did center both before installing, and they work together fine… but hum when power is supplied to them… they are 645MG’s
Proper assembly of the ASB-13 is: Install the inside servo in the ASB-13 and then install the “C” bracket. Then install the outside servo in the ASB-13. Power and center both servos. Then drill holes in the plastic servo horn to attach the outside of the “C” bracket with screws and nuts. This way both of the servos are centered and firmly attached to the “C” bracket. This should eliminate, or dramatically reduce the humming. Did you do it like this?
I just used the holes already in the horns… my servos are slightly warm too… i dont know if this is normal… i feel like im abusing them 
Well tht’s because you are. Remove the screws that connect the “C” bracket to the outside servo horn, and turn on and center the servos. Then you will see how far off they are. Then drill new holes in the white plastic horn for the “C” bracket and reconnect it. this will make your servos happy. Happy servos are stronger and just have a better outlook on life. 
could this be causing the SSC32 to act strangly? I wrote some code to home out the arm and i am using the timed function for about 1-2sec. per move. and it will cut power completely to the servos and when i try to home it… it goes fullspeed??? I am useing the Wallpack its either 1 to 2amp, for both my logic and servos.
there are 8 servos… i dont think i mentioned that… they’re mixed i have some digital, analog, hitec, futabas. Could there be something wrong with the SSC-32?
The probelm is you are using more current than the power supply can deliver. This causes the SSC-32 to reset because you are powering everything from the single supply. To fix this you can either use a more powerful supply, or connect a 9vdc battery to the VL input, AND remove the VS=VL jumpers. This will fix it.
i dont think its resetting because the light didnt come on steady… shouldnt the 2A PS be enough for 8 servos?
btw: i was using the Time function in my code (vb)… i am gonna try Speed instead and see if that works better… it was only fast on th first move… the rest were ok… and the T was at the end of the stream too.
The SSC-32 resetting is the only way the servos could stop holding position. If your program is constantly sending data, then the SSC-32 can reset without the LED staying on steady, because it receives the next command and the LED goes out. Real fast… The T command can not be used as the first command because until you initialize a servo the SSC-32 does not know where it is supposed to be. So send the move command without the T on the first command, then after that you can use it every time. The Speed is the same way. Until the SSC-32 knows where a servo is, it can’t move in a speed controlled way. After the servo is holding a position the speed argumant can be used from then on. Can 2 amps supply 8 servos? That depends on which servos (make and model), how much work they are doing, and how the supply fails if overdrawn.
You wanna know for sure what is going on? plug the SSC-32 into the PC and run LynxTerm. Type a comand to place all servos to mid position, then type a command to move all of them to a new position. Did the move cause the SSC-32’s LED to light back up? If so you have caused the supply to drop below 4 volts.
Would you just humor me and try the 9vdc battery on the VL input? It could save me a lot of typing… 