Author Topic: Big Walker Robots? Huge Servos?  (Read 2068 times)

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Offline NyxTopic starter

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Big Walker Robots? Huge Servos?
« on: February 08, 2007, 02:29:13 PM »
I'm curious here. If someone wanted to build a large, human sized walking robot... Would it be possible to get powerful enough servos to use as the actuators for the legs? We are talking about possibly 100 kg * cm of torque, at least (just guessing). Do they actually make servos that powerful? And if so, what kind of speed could be expected?

My guess is most people who build walker robots use linear actuators or systems that work with compressed air. These seem fairly expensive, however, and perhaps not as easy to control as servos can be.

If servos just aren't appropriate in this case... Do you believe there is an economical way of building a large scale walking robots with several degrees of freedom for each leg, or is that simply completely out of reach of amateurs?

Offline JonHylands

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Re: Big Walker Robots? Huge Servos?
« Reply #1 on: February 08, 2007, 02:49:04 PM »
The thing you really want are these:

http://www.yobotics.com/actuators/actuators.htm

MIT used them for M2, one of their dynamic bipeds.

- Jon

Offline NyxTopic starter

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Re: Big Walker Robots? Huge Servos?
« Reply #2 on: February 08, 2007, 07:11:08 PM »
The thing you really want are these:

http://www.yobotics.com/actuators/actuators.htm

MIT used them for M2, one of their dynamic bipeds.

- Jon



When they say "please call" for pricing, it's usually not a good sign...

Offline JonHylands

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Re: Big Walker Robots? Huge Servos?
« Reply #3 on: February 08, 2007, 11:40:11 PM »
Yeah, that's why I'm going to end up building them myself for my next project.

- Jon

 


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