Quadrapod Robot

KOLEW

Hey guys, just putting an update on my Quadrapod. I have the power system working for now. i was being dumb and trying to run everything of of just 5 rechargeable AA's and it just wasn't working. So i put another pack for the BASIC board and put energizer rechargeable AA's in for the servos but will have a 3000mAh 6V battery pack in it soon.
I have it walking on its own its just programed with a simple forward gait for now. I am trying to figure out a fluid single leg gait but that is a little more complicated.
Any way here is my video of the progress....[noparse][[/noparse]url]

Post Edited (KOLEW) : 7/31/2010 1:30:53 PM GMT

W9GFO

What I would do is remove one cell of your 7.2 v RC packs to make it a 6.0 v pack. Servos can draw a lot of current, especially in a walking robot where the servo must supply lots of torque. Your AAs may not be able to provide the current your robot needs.

Otherwise you could use a couple of appropriately rated diodes in series with the 7.2v packs to drop the voltage by 1.4 volts.

Rich H

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The Simple Servo Tester, a kit from Gadget Gangster.

erco

KOLEW: Sounds very interesting, please post some pics and a video!

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·"If you build it, they will come."

KOLEW

Thanks W9GFO I hadn't thought about but thanks for the input. Ill be modifying those packs soon.

Franklin

You can delete your other post and add it to this one since they both relate to the same subject. Use the red X before someone responds to it.

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- Stephen

erco

Great video, KOLEW! When I watch walkers, I gauge efficiency on how much the feet skid on the ground. Ideally, they wouldn't move at all one they are planted. For this early in the game, you are off to a GREAT start, your front legs hardly skid at all, even though your servos are hauling Smile! Looks like you have more weight on the rear legs, so it's harder to lift those completely off the ground at that speed.

Amazing effort. As you said, getting the right gait isn't easy, but please keep going and share your progress here. Looks like you did quite well on the mechanical construction, that's the hardest for most people. Now it's all in the software routines.

BTW, what controller are you using?

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·"If you build it, they will come."

KOLEW

Thanks erco, yea figuring out that gait and still balancing is a trick but i'm getting there. i am using a BS2 with a Prop servo controller for the time. i am working on learning spin and hope to have the propeller chip as the controller.