Alt-BEAM Archive
Message #06348
To: beam@sgiblab.sgi.com
From: Brad Guillot mach50@netzero.com
Date: Sun, 03 Oct 1999 17:27:27 -0500
Subject: [alt-beam] Re: Mark T first bot
That would rock, i seem to be having similar diffcutlies
and jason, you ain't alone, i got problems too(same ones too!)
Jason - wrote:
>
> Hi all,
>
> Dont u guys ever have a curiousity on how Mr.mark tilden first walker
> ,photovore and turbot look like and how he did the first ever brain and
> mechanix of the first eve walker..how he did it and how he think about
> it.....i would just like to know from people who stays near him like
> dave,ian,zoz,etc etc whether do they have the pictures of his first walker
> or can he try to get it for us to give us the right idea to beginners how to
> start his hobby and customizing his stuff while going up.......just would
> like to ask anyone out there who has info and pictures of his first bots or
> not...walkers etc etc..
>
> thanks a lot(everyone please contribute an idea about this topic)
>
> jason
>
> ______________________________________________________
>
6349 Sun, 03 Oct 1999 17:23:31 -0700 [alt-beam] Re: Protecting solarcells egdes beam@sgiblab.sgi.com Bruce Robinson David Perry wrote:
>
> ... i don't think bruce has actually
> made a bot yet, i think he has a pile
> of parts he calls version 0 :-)
Version -1, actually. But brains we haf plenty of, Igor. Heads, also.
Some work.
Bruce
6350 Mon, 04 Oct 1999 00:12:17 -0500 [alt-beam] Re: Diferences in Mark T walker beam@sgiblab.sgi.com Richard Piotter Those boards are small, but I've seen the SMT bicore boards. less than
an inch square!!! they are tiny, and YES, the chip does fit. An SMT
74xx240 is about half an inch long. SMT is MUCH smaller than any DIP out
there. Believe me, the boards do hold a chip, and I've seen them.
Jason - wrote:
>
> Hie all,
>
> Dont u all ever wonder why mark's new walkers are so different...as in as u
> can notice there are two big caps on those battery powered ones which is a
> weird sight and the particularly small PCB which i dont think can fit a chip
> not even a surface mount and another thing is there are several ( 6 or more)
> similar PCB whic i think is a bicore to control a two motor walker? isnt
> that strange...just would like to know your opinion...thanks
>
> ______________________________________________________
>
6351 Mon, 04 Oct 1999 00:19:25 -0500 [alt-beam] Re: Port escap Motors beam@sgiblab.sgi.com Richard Piotter The ones Tilden uses are expensive, around $400 if I'm not mistaken.
They are new motors. They are rectangular, approximately 3/4 inch wide,
1/4 thick, and approximately 2 inches long. I forgot the RPM or gear
ratio of them though.
Bumper314@aol.com wrote:
>
> In a message dated 10/2/99 7:52:51 PM Pacific Daylight Time,
> mr_roboto101@yahoo.com writes:
>
> > Does anyone out there know where and how I can buy
> > some Port Escap motors??
>
> Yep...there are some ones that are 40:1 ratio for only $20 at resources
> unlimite..they do adds in Popular electronics...and there are some very nice
> 1024:1 ration motors that i was the only one to get 2 of them...they are all
> gone now..anyone got a good offer for those?
>
> steve
--
Richard Piotter
richfile@rconnect.com
The Richfiles Robotics & TI web page:
http://richfiles.calc.org
For the BEAM Robotics list:
BEAM Robotics Tek FAQ
http://people.ne.mediaone.net/bushbo/beam/FAQ.html
6352 Mon, 04 Oct 1999 06:29:25 GMT [alt-beam] Re: Protecting solarcells egdes beam@sgiblab.sgi.com "Jason -"
>From: Bruce Robinson
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Re: Protecting solarcells egdes
>Date: Sun, 03 Oct 1999 17:23:31 -0700
>
hey bruce can i get some cheap techno scrap from u then......i have a
junkyard here...but from the outer looks of it...it only have scrap
metals...do u think it is a good place where i could get parts...thanks
______________________________________________________
6353 Mon, 04 Oct 1999 06:31:24 GMT [alt-beam] Re: Diferences in Mark T walker beam@sgiblab.sgi.com "Jason -"
>From: Richard Piotter
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Re: Diferences in Mark T walker
>Date: Mon, 04 Oct 1999 00:12:17 -0500
>
>Those boards are small, but I've seen the SMT bicore boards. less than
>an inch square!!! they are tiny, and YES, the chip does fit. An SMT
>74xx240 is about half an inch long. SMT is MUCH smaller than any DIP out
>there. Believe me, the boards do hold a chip, and I've seen them.
>
yea i know that already but why does he need to have at least 6 or more
bicore boardsfor a measly two motor walker?
______________________________________________________
6354 Mon, 04 Oct 1999 09:09:07 +0200 [alt-beam] Sonar beam@corp.sgi.com "Jaroslav 'Lord Slayer' Pelan" Hello,
does anybody know how to build an ultrasound motion detector with
calculating the distance of the closest moving object?
Thanks
JP
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