Alt-BEAM Archive

Message #12884



To: 'beam@sgiblab.sgi.com' =
From: Vermeulen, Vincent =
Date: Fri, 31 Mar 2000 19:23:09 -0800
Subject: RE: Fttaba servo as motor/gearbox combo.



I leave them on the gear train. It's a bit complicated without talking it=
through, but I will try. Attached is an ugly ugly sketch, but legible I ho=
pe.

The resistance to ground in the neuron is only important when the pulse i=
s actually in that neuron. The pot position corresponds to the leg position=
. So when a leg is too far off center, the resistance is higher than 'norma=
l', causing the pulse to remain in the neuron longer, making the leg move f=
urther the other way. The walker will straighten itself back out (and exhib=
it some other interesting behavior, such a shuffling or sidestepping depend=
ing on your motor setup) in three or less steps if left alone.
=

-snip-

Vincent
=

=

=



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----- Original Message -----


style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">Fro=
m:
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title=3DVermeulenV@health.missouri.edu>Vermeulen, Vincent

To:
href=3D"mailto:'beam@sgiblab.sgi.com'" =

title=3Dbeam@sgiblab.sgi.com>'beam@sgiblab.sgi.com'

Sent: Friday, March 31, 2000 3:10 =

PM

Subject: RE: Fttaba servo as =

motor/gearbox combo.



31032000>I =

leave them on the gear train. It's a bit complicated without talking it =

through, but I will try. Attached is an ugly ugly sketch, but legible I =

hope.

 

31032000>The =

resistance to ground in the neuron is only important when the pulse is =

actually in that neur
AN =

class=3D211541021-31032000>on. The pot=
position =

corresponds to the leg position. So when a leg is too far off center, the=
=

resistance is higher than 'normal', causing the pulse to remain in the ne=
uron =

longer, making the leg move further the other way. The walker will straig=
hten =

itself back out (and exhibit some other interesting behavior, such a shuf=
fling =

or sidestepping depending on your motor setup) in three or less steps if =
left =

alone.


class=3D211541021-31032000>
 

    -snip-

 


class=3D211541021-31032000>Vincent


class=3D211541021-31032000>
 


class=3D211541021-31032000>
 


class=3D211541021-31032000>
 




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