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BigDog uses hydraulic actuators, and is powered by a two stroke gasoline engine. Not so good indoors. Stationary industrial robots, the only real success story
by sbierwagen 11y ago
BigDog uses hydraulic actuators, and is powered by a two stroke gasoline engine. Not so good indoors.
Stationary industrial robots, the only real success story of robotics, have great speed and power, at the cost of incredible weight and power consumption.
Consider the Motoman EPX2050.
http://www.motoman.com/datasheets/EPX2050.pdf http://www.motoman.com/datasheets/EPX2050.pdf
15Kg payload, pretty okay, (Try holding a 15Kg weight at arm-length) but it masses 540Kg and has a rated power consumption of 5KW. (Three-phase power, of course) And that's just the arm! The NX100-FM controller it's specced with masses another 120Kg.
Mobile robots hate weight. Cutting weight forces a lot of other compromises, in speed, power, and cost.
- tgflynn 11y agoWhat about Atlas ? http://www.bostondynamics.com/robot_Atlas.html http://www.bostondynamics.com/robot_Atlas.html EDIT: Also for the Motoman, is it possible it needs so much power because of how fast it can move that 15 kg mass around ? There's no beating conservation of energy.
- xanderstrike 11y ago> Atlas is powered from an off-board, electric power supply via a flexible tether. There's your problem right here. The video demo shows it walking freely, but I bet it can only do that for short stints.