Alt-BEAM Archive

Message #04891



To: beam@sgiblab.sgi.com
From: James Taylor edgar_the_hate_bug1@yahoo.com
Date: Sat, 26 Jun 1999 21:56:20 -0700 (PDT)
Subject: [alt-beam] Re: A new life is born


Please don't post pictures over 12K to the list

--- SG wrote:
> Hello All! Just like to introduce you to "Lotus I"
>
> My first walker.
> Based on Ian's "Almost compleate walker" circut
> found at
>
http://www.beam-online.com/Robots/Circuits/circuits.html
> ALTHOUGH:
> 1.used 20 uf Cap instead of 30, this is for
> reverser, bigger cap, longer
> reverse time, .. (20 even seems to be even too long
> for me)
> 2.couldn't get 1.6M resistors, so used 1.5M
> 3.guys at many diff shops told me there was no such
> thing as a 2.5M
> resistor, had choice of 2.0 or 2.7, used 2.7M
> 4.used an IC socket, (i reccomend this for newbies
> when you get +and- mixed
> up, you can replaced the ic you just fried.
>
> I can say once and for all that YES this circut does
> werk and not too
> shabby either in my opinion! The reverser works
> like a dream too although
> i havn't got my Tactile sensor attached to the frame
> yet. touched the wire
> to grnd, and it backed perfectly.
> keep in mind this is my FIRST bot, havn't built a
> solar roller or
> photopooper yet. Heck i havn't even touched a
> soldering iron till i started
> this project!
> Thanks to IAN! what a help your page has been!
> (watch the H-Bridge be sure
> to read the NOTE on step 3. I think i'm the one that
> discovered this)
> Also thanks to you folks on this mail list for your
> input too!
> FRAME:
> Aluminum angle bar (very light) 7" lng. notched
> for angle at front
> held together with small machine screws. used
> rubber O-RINGS for washers
> where IC PCB is attached to frame.
> Has LED's showing when legs fire (very nice touch i
> thank whoever
> reccomended this)
> MOTORS:
> two CS-61 Hobbico Standard Servos $10 each (boy i
> think they're ugly, i
> much prefer the look of bg micros motors i've seen
> in pics)
> LEGS:
> Originally used 1/8" welding rod, but needed to
> practice on the leg
> semmetry a LOT, now using COAT HANGERS. Too bad,
> welding rod was silver
> like the frame. leg ends coated with plasti-dip.
> used longer (1-1/4")
> machine screws for "stops"
> POWER:
> 1.4V rechargable Batt. Manager at radio shack gave
> me ALL he had (5) for
> $10, he wanted em off the shelf. (they getting rid
> of them? try making
> offer to manager at R.S. in your area) attached to
> frame by electrical ties
> (not bad!)
> COMMENTS:
> still need to werk on legs, havn't got the shape
> quite right, front lift
> is only about 1/8 of an inch,... but other than that
> i feel like a proud
> parent.
> still need to add tactile sensor, i'll probably add
> two on each side of
> front to give that "bug" look. (though you only
> prob. need only one)
> lemme know yur comments i'm interested in wat you
> think.
> -Sparky

> ATTACHMENT part 2 image/jpeg
Attachment: otus1.jpg; x-mac-type=4A504547; x-mac-creator=4A565752 > > === Everything I say can mean one of two things...If something I say makes you mad....I meant it the other way. James Taylor URL: http://fly.to/springmeadows ------------------------------------------------------------------------ eGroups.com home: http://www.egroups.com/group/alt-beam http://www.egroups.com - Simplifying group communications 4892 Sat, 26 Jun 1999 22:11:16 -0700 (PDT) [alt-beam] Re: Solar cells (a new source?) beam@sgiblab.sgi.com James Taylor Hey, To answer alot of questions early, I will not get samples until monday, and thats when I can give more precise answers. Anyway, they claim they run at 3 volts at 100 mah, (unknown under what light). They appear (only looked a guess, never figured to get out a ruler) to be 2 inches by half an inch, prolly smaller. They do appear to be encased in glass, but I'm can't be sure without a sample. Th



--- James Wilson wrote:
> how big are they?
> Are they laminated with glass?
> Do they have terminals to which I can add my own
> leads?
> Do they work in sun light or indoor light
> (fluorescent)?
>
> James Wilson :-))
> ----- Original Message -----
> From: James Taylor
> To:
> Sent: Saturday, June 26, 1999 9:29 PM
> Subject: Solar cells (a new source?)
>
>
> > Hey, I found some god solar cells, 3 volts at 100
> mah
> > for 4.25 a piece. Anyone intrested in buying
> some? I
> > can get as many as needed.
> >
> >
> > ===
> > Everything I say can mean one of two things...If
> something I say makes you
> mad....I meant it the other way.
> >
> > James Taylor
> > URL: http://fly.to/springmeadows
> >
>
_________________________________________________________
> > Do You Yahoo!?
> > Get your free @yahoo.com address at
> http://mail.yahoo.com
> >
>
>

===
Everything I say can mean one of two things...If something I say makes you mad....I meant it the other way.

James Taylor
URL: http://fly.to/springmeadows
------------------------------------------------------------------------

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