Robo one size robots are too small for me, I want something at least the size of Asimo, anyone got any idea’s?
Ya, go robo-one size.
Does that mean bigger would be too expensive or difficult?
Probably. It depends on your resources.
Think thousands. And then thousands more.
Just do internet research on Honda’s P1, P2, and P3 robots…
Those were the research and experimental robots Honda worked on prior to Asimo.
Rumored cost is about U.S. 1 Million for Asimo.
I have been following the development of Honda’s robots for about 10 years…
They had about six other experimental robots prior to the P series…
I believe Asimo is their 10th robot…
The first 3 concentrated on the walking (they were nothing more than legs with an umbilical); the second 3 on the onboard computers (just legs with a box to house the computers - so they could finally severe the umbilical), and finally Asimo - the first one with arms, a voice, etc…
Obviously the servos/motors are custom designed for Asimo.
Some kind of servos/motors that had counterweights that rotated in the opposite direction so as to dampen the momentum, harmonics, vibrations, etc…
A little bit beyond my wallet…
The interesting thing about Honda’s robots is that so many people worked on their robots over the last 20 or so years that no one knows who worked on, or invented, or created what…
So no one person or group can claim Asimo as their own creation - its just all grouped under Honda as the “creator.”
MJL
If anyone is interested in creating lifelike movements or animation in their robots - do internet research on “compliance.”
They would have you believe that Compliance is a new science - it isn’t.
Its just now they have a cool robotics name for it…
Also, if anyone is interested; I am working on a little doodad which can be used with the SES to make Compliant joints…
Basically it allows limbs to be moved rapidly into position without that shaking and vibrating all of us are familiar with at the end…
Like human limbs… Try it yourself, move your arm to several positions rapidly - then ask yourself why they stop on a dime without vibrating, etc…
Thats because your bones are “compliant.” Its just not called that in Anatomy…
Yes - I have studied, and continue to study Anatomy towards its application in robotics…
Its a LOT of fun!
Unfortunately (like most people) I have way more cool ideas than money to implement them…
MJL
I hear ya. 
Thanks for the replies everyone! Maybe I should point out that what I want to do is make a crude life size 16 servo robo one. Not anything like Asimo. I think I can handle fabricating all the connectors myself. It’s just finding the right servo’s I’m worried about.
For monster-strong servos, here is the place.
vantec.com/ssps105.htm
Another option is using belt or gear driven reducing joints with feedback compliance. Or wormgear drives.
If we compare these servos to the DX-117’s sold from Robotis, this is how it pans out:
They have about 9 times the torque, but if you consider the new lengths of arms & legs etc, they have an effective 2-3 times the torque.
They weigh about 12 times what the DX’s weigh.
They take up about 12 times the volume of the DX’s.
They are about 5 times slower than the DX’s.
So realistically, the torque to weight (and torque to size) ratio is shot, as is the speed. No offense or anything, but these servos would not work on a humanoid of Asimo’s size. Furthermore, they have very limited sensing abilities, so walking (realistically) would be out of the question. Of course someone could make a pair of bipedal walking legs - but that has been done many times before.
I don’t mean to be pessimistic, but building a human/child size robot has not been done much because it is so hard to do.
Your best bet as far as gearing goes, is to use harmonic drive gears.
So besides finding the right servo’s whats so hard to do about making a human size humanoid? Also would it be realistic to have a bunch of servo’s in parallel to do this?
I’d say: 1) developing the engineering type of knowledge to design and impliment the project, and 2) bank rolling the project with the $$$ needed to get it completed.
It is more than a matter of finding the right servo or placing many in parallel - there is no such servo to be found at present (and any placed in parallel would be too bulky to be realistic). It takes an innovative design pattern to create such a robot (we once again come back to the harmonic gear drive system).
Furthermore, one needs to be far more careful with a larger robot (ie: if the robot falls over and hits hard, it will most likely break - unlike a robo-one size robot). Also the torque applied on the joints can easily strain a servo until it breaks - so one would need to carefully watch this.
As zoomkat stated, bank rolling the project would be immense.
If you want another example of this size humanoid robot I would search for the HRP-2 - its movements are very fluid for such a large robot. Like Asimo though, it uses Harmonic gears, which aren’t cheap.
I’m really not trying to engineer anything new, Just want to crudely scale up a robo one and hopeing all other problems can be tuned decent with the software.
So how much $$$ are you expeccting to spend on the projecct? There are numerous discussions on the boards started by persons not familiar with the actual requirements of their proposed projects. A general reality check is to do some research for similar projects others have already completed. If you don’t find any, or they are seriously expensive, then that is nature’s warning sign that there isn’t a simple solution. If scaled up robots were fairly easy to make, you’d already see bunches of them being built.
Maybe starting out big like that is the wrong way to go and I should start with one of the bigger robo ones and extend it a little bit at a time?
What types/sizes of robots have you already completed? If this is your first one, you need to start with something very simple to get some practical experience and see if you are up for the big project.
Have not built any yet. Only modified a roomba. Your probably right about that. I do know that I’d like to have both a hexapod and a robo one but don’t need both at the same time. I’m not sure wether to get a hexapod and make a robo one when I want one or a robo one and make a hexapod when I want one.
Windshield wiper motors from the scrap yard.