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Artificial muscles robotic arm with full range of motion [video]

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Re: Artificial muscles robotic arm with full range of motion [video]

#22

A few comparisons: > forearm with hand [weighs] only 1 kg That is slightly below a human forearm with a hand. > This artificial muscles robotic arm is operated by water and consumes 200W at peak The ideal consumption necessary to raise this 7 kg dumbbell by 1 meter in 1 second is 7 watts. Human muscle is about 20% efficient, so it probably consumes about 35 watts. Almost a tenth the power. A human arm can also achiev…

> achieve human immortallity [sic] by transplanting the brain into the machine the intuition is that it's probably easier to figure out how to keep a brain alive than an entire body alive

Brain without a body will feel really weird though.

Re: Artificial muscles robotic arm with full range of motion [video]

#23
post #19

Next: sensory input?

I am the member of crew responsible for the control system. ;)

We already have encoders in our fingers, however we have delays in electronics that will aggregate the data. The next hand model will have feedback.

However, the real problem is refining the manufacturing process to be repeatable. Too many things are done "by eye" at the moment.

Re: Artificial muscles robotic arm with full range of motion [video]

#24
post #10

This guy is a great engineer, I’ve been following his stuff for a while now. But there are unfortunately several fundamental limits which mean this type of system will likely never reach human level performance in a real world system. I work in robotics, specifically compliant and modular actuators, similar to the ones in the video. As I see it, (and many others in the field) One of the biggest issues in robotics is…

Hey, I've been looking into artifical muscles myself. Are you guys stealth or can you talk about your company?

Re: Artificial muscles robotic arm with full range of motion [video]

#26

What I don't see is how much hardware is needed to drive that arm.

We use custom valves, single board computer, water tank, pump with controller and a dozen meters of tubing. Valves are not shown on purpose.

All these things would fit in a human chest - we have a plastic skeleton next to it. We are working on further minimizing this.

Re: Artificial muscles robotic arm with full range of motion [video]

#27

If they worked a little on making those things quieter, they'd be like 10X more creepy by virtue of being 10X closer to crossing the uncanny valley. When you make a robotic arm that is so closely modeled after a human arm, isn't that one of the goals?

The uncanny valley is wrong. Or rather, it is a result that appears due to the juxtaposition of robots with different goal criteria.

Turns out, when you focus just on the devices which try to replicate both human likeness and emotional relate-ability (drop all the WALLe style cute but abstract ones), it's pretty linear based on how well that goal of emotional affect is achieved.

https://youtu.be/LKJBND_IRdI

Re: Artificial muscles robotic arm with full range of motion [video]

#28
"With" needs to be removed from the submission title, as that isn't the title nor the intended meaning of the Youtube video title. The title is Artificial Muscles Robotic Arm Full Range of Motion + Static Strength Test, as in it is demonstrating the range of motion of the artificial arm, not claiming it has the full range of motion of a human arm. It does not, as clearly stated in the video description.

Fingers are going to move from left to right but they don't have muscles yet. Metacarpal and left-to-right wrist movement are also blocked.

Re: Artificial muscles robotic arm with full range of motion [video]

#30
post #22

Earlier quoted context omitted.

> achieve human immortallity [sic] by transplanting the brain into the machine the intuition is that it's probably easier to figure out how to keep a brain alive than an entire body alive

Brain without a body will feel really weird though.

Yeah, they better connect the "feel" parts to something, otherwise insanity/suicide/murder might ensue.
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