These types of servos:
trossenrobotics.com/robotis- … servo.aspx
This thing is supposedly spec’ed at 888oz/in of torque!!! Well, the pricing sure reflect this monster torque.
Seems like many other robotic servos have a more “square” type of casing. Is LM planning on making any brackets compatible with these types of servos?
I don’t think those are quite the same kind as “hobby servos”. These seem to be more of an industrial solution for people who need more torque than a standard hobby servo can supply, therefore one would need to venture away from hobby products and closer to more industrial approaches. I don’t think there will be any SES for these, especially since it would have to be made to fit those hole patterns around the edges.
PS: notice how their not in the “hobby servo” Catagory on the website 
We have no immediate plans to do this.
I believe it could be used for hobby robotic solutions if you are looking to make you’re own biped to have competitions (like ROBO-ONE). Itès for people very serious (200+$ a servo).
I believe it would be a servo like the 5980 about (same torque about) , but that you can tripple the voltage (so much more torque finaly) , that’s what the robot like kondo does, they modify the servo to be able to wistand high woltage to get more torque.
Also : did you notice that the Hitec 5990’s aren’t in the hobby robotics either?
And logicaly, LM couldn’t do SES for evry servo they find, they chose Hitec (that sell good servos), If you want something else, it’s custom made! 
PS: If you done one with those, show us some vids of it action
I seriously doubt someone would spend almost 300$ per servo for a full huminnoid biped. Not to mention that it would be MUCH more bigger than any other biped since the servos look much bigger than standard size hitecs or futuba. Even if you did have the money, building custom brackets for that kind of servo would be extremely difficult since they would have to comply with the hole patterns on the servo (not they’re completely different from any hitec or futuba standard servo) and would have to be entirely different than the SES and much more complex.
Also, I don’t know if it would be very easy to power 20 of these badboys on any regular battery packs, and would probably take a pretty heavy battery as well…
This servo is most likely used for strong custom built pan/tilt systems that could mount cameras ect for serious builders.
It should run for a 4S LiPO directly. You would need some custom controller stuff though as they use rs-485 serial and it would be the controller’s responsibility to make sure they did not drive the LiPO below about 12V (3V/cell) before shutting stuff down totally.
If one needed to use this type of servo, drilling, cutting, and bending custom brackets would be a minor part of the project.
Well, it would all be relative. I’ve seen this documentary on infatuation with robots in Tokyo on youtube where this hobbyist states “my family suffers” or something to that effect I think there are probably many hobby roboticists out there that have spent enough money on this hobby to buy a small car :mrgreen:
These are the servos used in Robotis’ Bioloid system. So a humanoid biped with about 16-17 DOF wouldn’t measure much taller then a standard Kondo, Robonova, and Futaba’s RBT.
Bioloid has brackets that fits these kinds of servos, although I would hate to see what would happen to those brackets if the binding occurs on any of the hinges and the servos were commanded to move
Many Kondo owners run their stuff off of 6-cell sub-c packs used in R/Cs. Electric R/Cs with that run “modified” motors suck up juice like crazy (take a look at the high-end electronic speed controller’s power rating)
I suppose you can use it for that too.
These servos stated output torque is not for the standard 6-cell subC pack voltage. You would need two such packs wired in series to get the stated output torque numbers. The max current spec of 1200mA is pretty nice though if it is at the stated torque value. Part of the huge price tag on this thing is probably the Maxon motor… generally good quality but expen$ive.
Yes, 300$ a piece, quite some high level robot hobbyist would spend this money. On TV one hobbyist said he spent the money of a small car (like tom said) on his humanoid, not on all of his robots, just one humanoid… 
I believe I will do so too.
What makes you think creating an SES bracket for the Robtis servos would be any more difficult that creating a new SES bracket for standard servos? I don’t think it would be any more complex to design an SES compatible bracket for the Robotis servos than to design a custom SES bracket for any other purpose.
You should read the documentation on the Robotis stuff (or anything else) before making such comments. The Robotis servos run at a higher voltage (7 - 10V, 9.6V recommende) than regular servos.
8-Dale
Well, Robotis obviously made brackets for them, so I don’t think it’s difficult or impossible, it just needs to be drawn out and have the right material to be selected for this kind of application.
In the end, it’s all about power. A higher torque would require higher power for a given efficiency and transit time. Power is essentially V*I (where I is current) for a steady state circuit. If you raise the voltage, you are essentially raising the power as well, if you raise the voltage, you can have a lower current flowing for the same power.
It’s all relative, a higher voltage usually will require many low-voltage cells in series. Maybe switching to a LiPo battery system would be the key since it is relatively lighter in weight then and equivalent NiMH or NiCad for capacity.
Even though Jim has stated that LM has no intention to make brackets for these servos, (a wise move since LM would be competing against Robotis for brackets and essentially be at their mercy for servos rather then using the standard size offered by Hitec and many other fine radio manufacturers), to make them SES-compatible, you would just need to have the servo-horn hole pattern on the brackets in a sensible location for it to be compatible with SES… So long as the hinges can be offset with bearings washers for the “C” type brackets, it should be pretty trick.
Anyone out there with a CNC machine to prototype some out of aluminum? I wouldn’t think of using these monster servos with their plastic ones… 8)
lol, like a 2 ft tall biped
i can see it now, in a robo1 fight
“ROBO SMASH!!!” sits on competition "Me win dumb smile
