Author Topic: Biped Difficulty  (Read 1536 times)

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Offline JSH21Topic starter

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Biped Difficulty
« on: July 24, 2008, 09:39:05 PM »
For those who have created a standard biped robot in the past (nothing too fancy) exp 4-6 servo legged. I was just wondering how hard overall was the process from the point where you were designing to the stage where you were programming and finally completing the robot?

Offline airman00

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Re: Biped Difficulty
« Reply #1 on: July 24, 2008, 09:42:22 PM »
I haven't built a biped myself yet   but if you buy this book it'll show you step by step how to make a true balancing biped with a total of 8 servos.
http://www.amazon.com/PIC-Robotics-Beginners-Guide-Projects/dp/0071373241
Its a good book as well, I use it a lot.

,Eric
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Offline Ro-Bot-X

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Re: Biped Difficulty
« Reply #2 on: July 25, 2008, 09:04:46 PM »
Here is a quote from that book:

Quote
When we walk, we receive constant feedback from our leg muscles and feet
such as stretch, tension, and load, in addition to having tilt and balance information
present from our inner ear. Remove this physical feedback information
and remove any visual clues, and it becomes much harder to walk. Imagine
how much harder, if not impossible, it would be to learn how to walk without
sensory feedback.
This lack of feedback is a dilemma for robotics. It is possible to program a
bipedal walker robot to walk without feedback and a sense of balance. To do so,
exact position control and movements are measured for each leg servomotor
action, each action sequence is programmed into the microcontroller, the program
is initiated, and the sequence repeated to achieve a walking gait.

So it is basically a sequence of repeated movement to make a legged robot walk or do anything else. A lot of work is in those sequences, but after they are done, the robot can move easily.

But to be a real balancing bipedal robot, it has to have inertial sensory feedback and all sequences need to be adjustable by some factor depending on the sensory input.

So, it can be easy or difficult, depending on your objectives. You may want to check out biped kits then add your stuff to them.
Check out the uBotino robot controller!

 


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