Alt-BEAM Archive
Message #08986
To: beam@sgiblab.sgi.com
From: "johannes urke" j_o_h_a_n_n_e_s_@hotmail.com
Date: Mon, 10 Jan 2000 15:56:31 CET
Subject: [alt-beam] Re: icq?
hey maybe i schould give you guys my icq too its:
60473946
by the way,that photovore i mentioned.....
i got some caps but they are bigger than the main cap hehe
>From: CIRCITZ@aol.com
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Re: icq?
>Date: Sun, 9 Jan 2000 18:44:19 EST
>
>hey All
>ICQ me @ 14450937
>
>Dan
______________________________________________________
8987 Tue, 11 Jan 2000 00:18:28 +0800 [alt-beam] Re: 1381s in Australia beam@sgiblab.sgi.com, Ben Hitchcock Peter Hamer
Hi Aussie BEAMers
I noted Ben's comment about lack of 1381s in Australia. Well check out our
Solarbotics page on our web site at www.robotoz.com.au and you will see that
we have stock ready and waiting for your needs, right here in Australia as
well as many of Dave's stock items.
Cheers
Peter
--
Peter & Megan Hamer Robot-Oz
Web: http://www.robotOz.com.au
Ph: (08) 9243-4842
E-mail: kits@robotOz.com.au Fax: (08) 9246-1563
7 Felgate Pl, Warwick, Perth, Western Australia, 6024
8988 Mon, 10 Jan 2000 08:20:10 -0700 [alt-beam] Re: SV: BIPEDS Was: Pressure Sensors beam@sgiblab.sgi.com Senior Yes, those guys are great. There's three of them I think. A combination
of those and Honda's P3 would be the 'perfect' walker in my opinion.
Yes, please do post the URL.
Kyle
Thomas Pilgaard wrote:
> However, have you guys seen that MIT robot that keeps it balance
> dynamically? It has two straight legs, no kneejoints, no feet or whatever.
> It walks in a pogo-stick style manner which means it gives a jump each time
> one stick touches the ground. It is not capable of standing still since it
> lacks an area on which to stand. It can - however - somersault and still
> keep it's balance afterwards. If you need an URL I'll see if I can find it
> again.
>
> Cheers
>
> Thomas
8989 Mon, 10 Jan 2000 09:38:31 PST [alt-beam] Re: SV: BIPEDS Was: Pressure Sensors beam@sgiblab.sgi.com "Timothy Flytcher" > > >Good idea :) I notice we tend to aid ourselves in shock absorbing with
> > >padded shoes and soft carpet. If it walkd with static balance then
> > >padding is not needed, so I guess their need for shock absorption
>proves
> > >that P3 walks with dynamic balance (IE it is off balance and falling at
> > >one point).
> > >-Kyle
> >
> > I don't see how you get this assumption??? After all a car has shock
> > absorbers but is never "off balance"???
> > Timothy...
>
>I wouldn't call that an argument Timothy (no offence ment) since the prime
>objective of designing a car is not how to make it keep it's balance. In a
>car it is an implicit assumption that the weight / height distribution is
>in
>favor of balancing which makes this a secondary concern.
>Thomas
Ok, I'll try to do better...
Any time you have a system which moves any significant mass, such as a
robot, you need to cushion the stop and go jarring caused from impact with
the ground... It is one of the reasons we use wire for our walker legs (
servo gears last longer)... the legs should be heavy enough to support the
weight but light enough to have a little give ... now any waker that weighs
more than say 10Lbs you should also be concerned with the floor under which
the waker is stepping... So you build your waker with some softer giver
springs... Now you have introduced a problem with unwanted oscillations...
the simplest way to dampen out these oscillations is with shock absorbers...
This would work whether the system is static or dynamicly balanced... So
I say that you cannot derive which system is used simply by looking at the
shocks... or am I wrong???
Timothy...
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8990 Mon, 10 Jan 2000 19:28:12 CET [alt-beam] photopopper head? beam@sgiblab.sgi.com "johannes urke" i was wondering since i now have a photovore brain from chiu`s tutorial done
if it could be connected to one motor making it a 1 dof head?
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8991 Mon, 10 Jan 2000 11:05:44 -0800 [alt-beam] Re: New(?) FLED variant "'beam@sgiblab.sgi.com'" Wilf Rigter Brilliant!
wilf
> -----Original Message-----
> From: Ben Hitchcock [SMTP:ben@wollongong.apana.org.au]
> Sent: Sunday, January 09, 2000 8:15 PM
> To: beam@sgiblab.sgi.com
> Subject: New(?) FLED variant
>
> All,
>
> I have been experimenting with the FLED Solar Engine for the past couple
> of
> days, and I've improved it a little bit. Gone are the days of watching
> your
> FLED blinking away precious energy and making your SE lock up. Attached
> is
> a .gif of the new circuit.
>
> What's more, you can now use this FLED SE as the basis for a photopopper -
> no more chasing exotic 1381's and ultra-efficient motors!
>
> Full details of my popper are available at:
> http://wollongong.apana.org.au/~ben/fred/
>
> I just realised that the last attachment I sent was encoded in some weird
> "AppleDouble" format. This one is sent as a UUencode. Please let me know
> if you want the attachment(s) sent again, maybe in MIME this time. (Damn
> Outlook Express!)
>
> Ben << File: schematic.gif >>
8992 Mon, 10 Jan 2000 12:15:03 -0500 [alt-beam] Re: request RICHARD READ THIS "Richard Caudle" Oops! It went into my general folder and not the BEAM folder, so i didn't
even look at the addressing! Sorry!
Richard
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