Boston Dynamics has a good utube staring Spot and Adam Savage of Myth
Busters.
On 12/30/20 11:22 AM, Chris Albertson wrote:
Altas is hydraulic. It has 28 hydraulic actuators and one battery-powered
pump. The battery is 3.7 KWH size They say it runs for about an hour.
So he is burning 3.7 Kw The robot would heat a good size room.
The yellow dog "Spot" is 100% electric with custom BLDC motors, 3 in each
leg.
On Wed, Dec 30, 2020 at 5:19 AM Les Newell <les.new...@fastmail.co.uk>
wrote:
I saw this shortly after it came out. At the time I wondered if they
were using hydraulics on Atlas. At one point you can see what looks
suspiciously like some liquid was spilled on the floor. Looks like one
of the robots sprung a leak during testing.
Incredible motion control. They've come a long way since Big Dog.
Les
On 30/12/2020 02:20, Chris Albertson wrote:
Just when I think I am beginning to understand the basics of controlling
motors, PID and MPC controllers, someone has to prove I don't know
nothing.
This is the best demo of 28-axis machine programming I'm ever seen.
(yes,
28) "Atlas has one large battery-powered motor and 28 hydraulic motors
with encoders. The movement is controlled by a kind of g-code giving
the target locations then Atlas does his best to get there.
This is I think to date the best display of machine motion programming
ever
https://youtu.be/fn3KWM1kuAw
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