Alt-BEAM Archive

Message #06913



To: beam@sgiblab.sgi.com
From: Richard Piotter richfile@rconnect.com
Date: Tue, 19 Oct 1999 18:02:34 -0500
Subject: [alt-beam] Re: Piano Wire ....


I get guitar wire in approximately 3 foot lenths for $1 a package. You
just need to find the right place to buy it from. Don't bother with
wrapped wire. Too flexible.

Rik wrote:
>
> I notice alot of you out there use Piana Wire for Legs (jiggle bots) or for
> sensors....
>
> where can i get some of that? ... is it actually a piano String?? ... i have
> been experimenting with guitar string...but it's a bit to expensive to "mess
> around with" ... i went out to my local craft store (the rag shop) and
> picked up some Floral stem wire ... it was less than $1 for like 30 24inch
> pieces!! .. i got the 20gauge..i think it might be a bit too stiff..
>
> -Rik
>
> www.geocities.com/mutantb0y

--


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



6914 Wed, 20 Oct 1999 01:02:04 +0100 [alt-beam] hextile boards "Vlatko Matijevic"
content-transfer-encoding: quoted-printable

Well, it seems that I have some nice hextile PCB designs. I have drawn them=
from http:/home.swipnet.se/kristoffer/hextile.htm which were drafted by Jo=
hn A. deVries II.
If anyone is interested in these just say so!!! Now I have designs for Hx 1=
.0 , Dx 1.1 and a Bc 1 (bicore) board.
I also made a SMD version of the Hx and Dx boards.
I'd like as many people as possible to see them and t say what they think o=
f them because I'm still not sure if they
are 100% correct.
These boards shoud be double sided. Both sides are the same.
I don't know if this is legal because these designs are those I found on so=
meone's site.

Can someone help me with the microcore...
I'm just building a 2 motor walker and the brain is still on the breadboard=
. It seems that motors aren't getting enough power.
They don't movelike I've seen on other walkers. They move to lazy and when =
I take the shaft with my fingers I can feel that =

the motor is realy weak. I use small geared motors that I found at Conrad.
I've tryed vith the servos too, but then happens nothing. Microcore does no=
t have enough power to move servo at all.
Then I connected the H-bridge to drive the motors.........,,,,but stil noth=
ing happens !!!!
Sometimes microcore resets itself (I mean LEDs flash with no order).
What could be the problem? Is it possible that all this happens because I u=
se HCT chips instead of HC or AC ones?

Please help me or tell if you are interested in PCBs.
Thanks

Vlatko



content-transfer-encoding: quoted-printable



>
e designs =

are those I found on someone's site.
 

Can someone help me with the =

microcore...

I'm just building a 2 motor walker and the=
brain is =

still on the breadboard. It seems that motors aren't getting enough =

power.

They don't movelike I've seen on other wal=
kers. =

They move to lazy and when I take the shaft with my fingers I can feel that=
=


the motor is realy weak. I use small geare=
d motors =

that I found at Conrad.

I've tryed vith the servos too, but then h=
appens =

nothing. Microcore does not have enough power to move servo at all.<=
/DIV>
Then I connected the H-bridge to driv=
e the =

motors.........,,,,but stil nothing happens !!!!

Sometimes microcore resets itself (I mean =
LEDs =

flash with no order).

What could be the problem? Is it possible =
that all =

this happens because I use HCT chips instead of HC or AC ones?

 

Please help me or tell if you are interest=
ed in =

PCBs.


size=3D2>           =

Thanks

 

        =

               =
=

    Vlatko

 




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