Alt-BEAM Archive

Message #12855



To: beam@sgiblab.sgi.com
From: Dave Hrynkiw dave@solarbotics.com
Date: Fri, 31 Mar 2000 00:03:02 -0700
Subject: [alt-beam] Re: Spam, the other white meat? --> battery capacity


At 09:38 PM 3/30/00 , Zane Bryan wrote:
>Here's a BEAM-type question...Anyone got a bead on how many mA a 1.5 volt AA
>battery puts out? I'm sure it's been asked before...

Alkaline (Duracell/Energizer) type are about 1.5A*H I think. Usual nicads
are good for about 800mA*H.

---------------------------------------------------------------
"Um, no - that's H,R,Y,N,K,I,W. No, not K,I,U,U, K,I,_W_. Yes,
that's right. Yes, I know it looks like "HOCKYRINK." Yup, only
2 vowels. Pronounciation? _SMITH_".
http://www.solarbotics.com



12856 Fri, 31 Mar 2000 22:36:22 -0800 [alt-beam] Biped "Tan"
content-transfer-encoding: quoted-printable

It seems that all (well, almost all :) of BEAM tech has focused on 4 feet, =
6 feet, 1 foot (symet) etc. I was just wunderin why isn't there any bipeds?=
(walkers, and no wheels)
I know it's a bit harder, but the main problem is just the balancing. =

So, this is my idea:
1. Have 2 legs,both that go up and down at diffrent times.
2. A motor to put one leg forward while its up (lets call it retracted) and=
when it's down (deployed), use it as the fulcrum (is it fulcrum?) to push =
the other leg forward, which is retracted and etc (I hope you get me :)
3. Lastly, another motor that drives a weight (preferably the batt., circui=
t etc) from the extreme left to the extreme right to counterbalance the leg=
that is retracted =

( I also hope that this is clear)
Anyway, with some imagination i'm sure you could visualise it.
Is it feasable? I know i should have tried it out but i have just done the =
legs and i can't wait. (Hectic schedule)
It does not resemble nature in that we move our legs to the centre of balan=
ce =

but this bot moves the center of balance TO the legs
(If you still can't visualize it, think Mechwarrior III)
If it's feasable, please help me think of a suitable circuit. (mebbe 8nv uc=
ore?)


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>
lance =

the leg that is retracted
( I also hope that this is clear)

Anyway, with some imagination i'm sure you could visual=
ise =

it.

Is it feasable? I know i should h=
ave tried =

it out but i have just done the legs and i can't wait. (Hectic =

schedule)

It does not resemble nature in that we move our legs to=
the =

centre of balance

but this bot moves the center of balance TO the =

legs

(If you still can't visualize it, think Mechwarrior =

III)

If it's feasable, please help me think of a suitable ci=
rcuit. =

(mebbe 8nv ucore?)




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