How come the lower end hitec servos (hs50,55, etc) arent used to build humanoids? is it because there onot digital, and dont have as much holding power? I would really hope/like to build one one day, although its a pretty expensive project.
This is just an educated guess, but I'd imagine that anyon'es "low end" servos probably don't have sufficient torque for a "humanoid" robot. Of course it all depends on how large the "human" replica is
If you take a look at some of the low end servos
not designed for humanoid robots, they have a
startup power on movement when they are first
pulsed. This moves the servo horn to an undesired
position. While this is readily accepted for bipeds
and more simple robots with fewer servos, in more
complicated robots the movement of many servos
to an out-of-home position could have some
undesired results.
I tried some low end servos for a humanoid robot
and aside from the challenge mentioned, the
servos adequately performed with sufficient
light weight materials. In fact, there are companies
manufacturing humanoids using some low end
servos, in Asia. By keeping the servo cost low,
and using a low cost servo controller to handle the
overhead, a Basic Stamp such as the 2px is well
suited, fast, and ideal for interfacing to a servo
controller. Plus, there's a lot of Penguin Robot
software available to run on this platform.
Thanx guys for the clarification. ·I would hope to make that a long term project once i get a lil more advannce with the programming.·Humanoido you have any pic of that humanoid project you did? where yo able to have it do multiple things at once? i was told i would need an SX or Prop (of the parallax family)· if i wanted to control multiple servos at once.
Comments
This is just an educated guess, but I'd imagine that anyon'es "low end" servos probably don't have sufficient torque for a "humanoid" robot. Of course it all depends on how large the "human" replica is
Regards,
Bruce Bates
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
not designed for humanoid robots, they have a
startup power on movement when they are first
pulsed. This moves the servo horn to an undesired
position. While this is readily accepted for bipeds
and more simple robots with fewer servos, in more
complicated robots the movement of many servos
to an out-of-home position could have some
undesired results.
I tried some low end servos for a humanoid robot
and aside from the challenge mentioned, the
servos adequately performed with sufficient
light weight materials. In fact, there are companies
manufacturing humanoids using some low end
servos, in Asia. By keeping the servo cost low,
and using a low cost servo controller to handle the
overhead, a Basic Stamp such as the 2px is well
suited, fast, and ideal for interfacing to a servo
controller. Plus, there's a lot of Penguin Robot
software available to run on this platform.
humanoido