Is it possible to run 2 or more SSC-32 on a single robot? I ask because I noticed some of the servos draw 3-4 amps and at 15 amps per side on SSC-32 if u were pulling 3 amps per servo, you could only operate 5 servos per side correct? So if you had a robot with say 18-20 of these servos, you would need 2 or more SSC-32 to control them all? I am new to robotics and new to servos, just trying to gather some knowledge! 
Thank you.
You probably could, but I doubt you’d need it unless the bot was huge you were trying to do something really weird. I think it would be very rare to run into a condition where you were drawing max current through ALL of your servos at once. What are you planning to do?
Well I’d like to build a quadraped bot. And yes it would be pretty good size. 5 servos per leg. Using servos that stall out at 4.2 amps. I see what you mean about all the servos not pulling max amps all the time, like the servos moving one leg forward to the next position wouldnt be pulling as many amps as the servos in the leg holding up half of the robot and at the same time pushing him forward. I’m still not sure 1 SSC-32 would handle it. At the current size and weight of my design 1 leg (on the side of the bot where 1 leg is in the air so the leg on the ground is supporting half the robot) would pull roughtl 16 amps. 24" legs (20" tall with the legs bent at the knee). Total weight can be no more than 14 lbs. At 14 lbs all the servos at running at 87% of oz-in torque. So I would assume also 87% of stall amps.
If you’ve seen AMEE from Red Planet movie thats what I’m designing it after. Just scaled down of course . Anyway, just trying to learn all I can before I actually start.
If you are going to be using heavy current, just DIY your own heavy duty power bus for the servos.
You are following what seems like reasonable design guidelines, but… A servo will not work anywhere close to the stall torque values they are spec’d at. The servo may be able to supply the high torque for 30 seconds, but if left there for any amount of time the servo will shut down to protect from damage. This is assuming you are referring to a high end Hitec digital servo.
Do you see any 5 DOF quads anywhere on the net with 24" long legs?
What servos are you looking to use?
Today I more accurately calculated the amps required per leg. Based on the weight of the leg as a whole (for the shoulder servo) and the tibia and femur separately (for the knee and ankle joints) the lenght of each joint, the angle it will operate at (I learned it takes less torque to move an arm from 0-45 degrees then it does from 45-90, assuming 0 is straight down or straight up, I never knew that! lol) etc. The leg single leg on the ground is 13 amps, the leg on the same side off the ground is 2.5 amps and the 2 legs on the other side, both on the ground is 6.5 amps each. This is the extreme of course. 13 amps is when the leg is stretched out in front or behind the robot, the leg at its longest length, as the leg moves from in front to directly beneath the robot (as it moves forward) the required torque/amps will decrease. That sound about right? The servos im looking at are sold at Servo City, they have HS7955TG, they make a servo bracket that comes with a gearbox increasing the torque of the servo from 333 oz-in to 1660 oz-in. And from what Ive seen on the spec sheets the hole pattern on that bracket matchs Lynxmotion hole pattern(fingers crossed) lol, cause I plan on buying all the other parts and servos from you Jim! lol. Thanks for your input guys
Oh, just re-read your msg Jim, yea after I recalculated it seems the servos are operating at approx. 70% of the stall torque on the servo…is that ok? or still to high?
I’ll be honest, with the gearing I have no idea.
For that cost, you might look at robotics specific servos. Don’t get me wrong the 7955 is a beast, I’ve used em before, but there might be a better option out there, especially if you don’t need the super high speed of the 7955.
Re: the torque vs angle thing, what they are saying is it takes more torque to lift the arm when it is more horizontal so to speak. The torque required to hold something up is equal to the objects weight times the horizontal distance from it to the servo. If the object is hanging under the servo then the horizontal distance is zero and therefore the torque is too.
When the leg is horizontal its weight is as far away (horizontally) as possible from the servo, and thus the torque is highest. It doesn’t just magically change as soon as the servo moves past 45 degrees.
And with 5 servos in the leg… It’s actually a lot more complicated than the above description. 
Lol, yea I didn’t mean at 45 degrees it magically changes. Just that as the leg moves from straight down to horizontal the required torque goes up. Most of my leg angles are from 45 degrees left to 45 degrees right, 0 being straight down (far as I can tell from having never built one lol) and before anyone corrects me (lol) I guess I mean 90 degrees being straight down and the range of movement is from 45 degrees to 135 degrees. I’m not sure what robotic specific servos are…I’ve googled online and for how much they weigh vs there torque, standard size servos seem the best for what I’m doing, and the gearboxes make them plenty strong for what I need. And after Jim pointed that out about the servos cant operate near stall I noticed my shoulder servo was almost at stall torque, so if I change it out to a higher torque gearbox it pulls about 1 amp less, so I might actually be able to get 2 legs on 1 side of the SSC-32…Well Jim ill be placing an order Fri for all the parts ill need for 1 leg, then I can begin experimenting and testing/learning lol. Thanks alot guys for your support and help. Everyone here seems very helpful and understanding.
Well yeah you have to look at the load at each servo, and things start adding up… but I can only say so much on my smartphone keyboard. 
Also it was said above, but to echo whomever first suggested it, consider making your own bus for power distribution and leave the ssc-32 in charge of just sending the signals to the servos. You can find lots of tutorials for that on rc sites. Rc rock crawlers do it all the time with their servos.
Haha. Yea I understand Xzivr, thx for your help, you guys helped me to understand a few things about servos.
Ah ok, I thinkI see what you mean. Yea ill look into that and see if that will work better for what I’m doing.