Friam

One Legged Hopping Robot

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Frank Wimberly-2

One Legged Hopping Robot

For those who saw the video this morning, I checked and found out that the sensors that provide feedback are a pair of gyroscopes: the vertical gyro and the horizontal gyro. I think that theoretically one would be enough but it must simplify the problem to use two.

Frank

Frank Wimberly
140 Calle Ojo Feliz
Santa Fe, NM 87505
505 670-9918

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John Dobson

Re: One Legged Hopping Robot

Cindy asked what Friam had talked about this morning, so I described the one-legged hopping robot. She thinks we're all kooks.

John

On Fri, Jul 17, 2020 at 4:23 PM Frank Wimberly <[hidden email]> wrote:

For those who saw the video this morning, I checked and found out that the sensors that provide feedback are a pair of gyroscopes: the vertical gyro and the horizontal gyro. I think that theoretically one would be enough but it must simplify the problem to use two.

Frank

--
Frank Wimberly
140 Calle Ojo Feliz
Santa Fe, NM 87505
505 670-9918
- .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. .
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gepr

Re: One Legged Hopping Robot

If I remember right, our missiles used 3 (laser gyros), one for pitch, roll, and yaw. I think the axis matters.

On 7/17/20 2:40 PM, John Dobson wrote:
> Cindy asked what Friam had talked about this morning, so I described the one-legged hopping robot. She thinks we're all kooks.
>
> John
>
> On Fri, Jul 17, 2020 at 4:23 PM Frank Wimberly <[hidden email] <mailto:[hidden email]>> wrote:
>
> For those who saw the video this morning, I checked and found out that the sensors that provide feedback are a pair of gyroscopes: the vertical gyro and the horizontal gyro. I think that theoretically one would be enough but it must simplify the problem to use two.

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↙↙↙ uǝlƃ

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uǝʃƃ ⊥ glen

Frank Wimberly-2

Re: One Legged Hopping Robot

In reply to this post by Frank Wimberly-2

https://youtu.be/LiNSPRKHyvo

My friend Marc Raibert explaining what our look work led to. Actually my involvement was very early and was limited to one paper: Raibert, Marc H. and Francis C. Wimberly.

      Tabular Control of Balance in a Dynamic Legged System.
      IEEE Transactions on Systems, Man and Cybernetics 14, 1984.

Frank

---
Frank C. Wimberly
140 Calle Ojo Feliz,
Santa Fe, NM 87505

505 670-9918
Santa Fe, NM

Barry MacKichan

Re: One Legged Hopping Robot

In reply to this post by John Dobson

We should ask for a second opinion after she’s off the meds.
—Barry

On 17 Jul 2020, at 17:40, John Dobson wrote:

Cindy asked what Friam had talked about this morning, so I described the one-legged hopping robot. She thinks we're all kooks.

John

On Fri, Jul 17, 2020 at 4:23 PM Frank Wimberly <[hidden email]> wrote:
For those who saw the video this morning, I checked and found out that the sensors that provide feedback are a pair of gyroscopes: the vertical gyro and the horizontal gyro. I think that theoretically one would be enough but it must simplify the problem to use two.

Frank

--
Frank Wimberly
140 Calle Ojo Feliz
Santa Fe, NM 87505
505 670-9918
- .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. .
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com
archives: http://friam.471366.n2.nabble.com/
FRIAM-COMIC http://friam-comic.blogspot.com/

- .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. .
FRIAM Applied Complexity Group listserv
Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam
un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com
archives: http://friam.471366.n2.nabble.com/
FRIAM-COMIC http://friam-comic.blogspot.com/