Alt-BEAM Archive
Message #10436
To: beam@sgiblab.sgi.com
From: Daniel Grace lifebytes_98@yahoo.com
Date: Fri, 18 Feb 2000 21:57:47 -0800 (PST)
Subject: [alt-beam] Re: Replaceable Bot Parts
I thought about the terminal blocks, but not connected
using wire. I'm guessing a large enough wire would be
strong enough to hold the sensors in the air, and even
provide some spring back if it does run into something
(or again, if I kick it), and make it less suseptable
to jarring the sensors out of alignment. Thanks for
the suggestion, it looks like just what I needed!
~Daniel
--- David Simmons wrote:
> Daniel,
>
> For very fast changes, like trying out different
> sensors etc, we have been
> using PCB mount treminal blocks, they come in
> different sizes depending on
> how many conections you need. Then just jump them
> using short pieces of
> heavy gauge wire. The wire is normally enough to
> hold everything together
> and it is also your conection.
>
> Regards,
> dave
>
>
>
> Daniel Grace wrote:
>
> > First off, to explain. I am definately not aiming
> for
> > efficiency here, I'm just experimenting. I was
> wanting
> > to experiment with making bots using one
> generalized
> > circuit, and three connection points for the
> sensors,
> > which can be replaced easily. The points would be
> +V,
> > Ground, and Signal. I thought of male/female pins,
> > which, I guess, would probably work, and with
> least
> > amount of work, but I don't like the lack of
> > flexibility. Then I thought of stereo headphone
> jacks.
> > Three connection points, and it can rotate. This
> way,
> > the sensor can be pointed in different directions.
> > Yes, it will also get knocked out of whack if my
> bot
> > smashes into something, the dogs get it, or I get
> fed
> > up and boot it across the room, but again, this is
> > just for experimenting. I was wondering if anyone
> has
> > used a headphone jack as a connection for their
> > circuits, and just how I could connect this to a
> PCB
> > with a sturdy connection. I would like the board
> to be
> > perpindicular to the jack the whole time, and be
> > firmly connected. Nothing wiggling or anything
> like
> > that, but I just can't figure out how! Any ideas?
> >
> > _______________ <- PCB
> > | |
> > | | <- Headphone jack
> > \_/
> >
> > See what I mean? Does anyone know how this can be
> done
> > with a good solid connection?
> >
> > ~Daniel
> >
> > =====
> > ICQ # 39402143
> > __________________________________________________
>
>
>
>
=====
ICQ # 39402143
__________________________________________________
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Talk to your friends online with Yahoo! Messenger.
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10437 Sat, 19 Feb 2000 00:03:05 -0600 [alt-beam] Re: Replaceable Bot Parts beam@sgiblab.sgi.com Richard Piotter
____
{____} <---Nut that screws over the threaded socket
__
| |
_|__|_
| |--
| |
| |--
| |
|______|--
You can get them in several sizes and styles from Radio Shack
Plug
\
\
__ ___ Nut
|__| /
_____{____}____|__|_|__
_______________________ <-- PCB
| |--o' / /
| | / /
| |--o' / <-- Jumpers
| | / To PCB
|______|--o'
\
\
Plug
For a plug that will plug into it, you could try one of those with the
plastic caps that screw on.
Daniel Grace wrote:
>
> Nice answer, I've never seen them with screw posts.
> Any particular manufacturer? Seller?
>
> ~Daniel
>
> --- Richard Piotter wrote:
> > Simple, buy one that has the screw post and the nut.
> > drill a hole in the
> > PCB and screw it in place. solder tiny jumpers from
> > the leads to the
> > PCB. Simple as that.
> >
> > Daniel Grace wrote:
> > >
> > > First off, to explain. I am definately not aiming
> > for
> > > efficiency here, I'm just experimenting. I was
> > wanting
> > > to experiment with making bots using one
> > generalized
> > > circuit, and three connection points for the
> > sensors,
> > > which can be replaced easily. The points would be
> > +V,
> > > Ground, and Signal. I thought of male/female pins,
> > > which, I guess, would probably work, and with
> > least
> > > amount of work, but I don't like the lack of
> > > flexibility. Then I thought of stereo headphone
> > jacks.
> > > Three connection points, and it can rotate. This
> > way,
> > > the sensor can be pointed in different directions.
> > > Yes, it will also get knocked out of whack if my
> > bot
> > > smashes into something, the dogs get it, or I get
> > fed
> > > up and boot it across the room, but again, this is
> > > just for experimenting. I was wondering if anyone
> > has
> > > used a headphone jack as a connection for their
> > > circuits, and just how I could connect this to a
> > PCB
> > > with a sturdy connection. I would like the board
> > to be
> > > perpindicular to the jack the whole time, and be
> > > firmly connected. Nothing wiggling or anything
> > like
> > > that, but I just can't figure out how! Any ideas?
> > >
> > > _______________ <- PCB
> > > | |
> > > | | <- Headphone jack
> > > \_/
> > >
> > > See what I mean? Does anyone know how this can be
> > done
> > > with a good solid connection?
> > >
> > > ~Daniel
> > >
> > > =====
> > > ICQ # 39402143
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Talk to your friends online with Yahoo! Messenger.
> > > http://im.yahoo.com
> >
> > --
> >
> >
> > Richard Piotter The Richfiles Robotics
> > & TI web page:
> > richfile@rconnect.com
> > http://richfiles.calc.org
> >
> > -- Make Money by Simply Surfing the Net or
> > responding to E-Mail!!!
> > -- Click below!!!
> >
> > http://www.alladvantage.com/go.asp?refid=ATL147
> >
> http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630
> >
>
> =====
> ICQ # 39402143
> __________________________________________________
> Do You Yahoo!?
> Talk to your friends online with Yahoo! Messenger.
> http://im.yahoo.com
--
Richard Piotter The Richfiles Robotics & TI web page:
richfile@rconnect.com http://richfiles.calc.org
-- Make Money by Simply Surfing the Net or responding to E-Mail!!!
-- Click below!!!
http://www.alladvantage.com/go.asp?refid=ATL147
http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630
10438 Fri, 18 Feb 2000 22:18:06 -0800 (PST) [alt-beam] Re: Replaceable Bot Parts beam@sgiblab.sgi.com Daniel Grace Wow, at the rat shack too? If they're that common
(face it the rat shack doesn't have that much of an
assortment of parts, at least not in store), I wonder
how I missed them. All I've seen had solder tabs, and
that's it. Now I don't know which option to choose. It
seems like the heavy wire would give better
flexibility and have less breakage if it bumps into
stuff, but the stereo jack would keep the sensors
aimed better. The method idea is worked out, now which
is better? Let the debate begin. *g*
~Daniel
> You can get them in several sizes and styles from
> Radio Shack
=====
ICQ # 39402143
__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com
10439 Fri, 18 Feb 2000 23:23:13 -0700 [alt-beam] Re: electric helicopters are getting close... beam@sgiblab.sgi.com Jean auBois At 05:01 PM 2/18/00 -0800, Timothy wrote:
>Take a look at this sight... I have recently read were an electric R/C
>helicopter has flown non stop for over one hour!!! and they just keep
>getting smaller...
>http://www.micro-flight.com/
The kit looks very nice and the price seems within reason... but it doesn't
include a lot of things. For example:
>REQUIRES (See Note)
>
>4-Channel Transmitter
>
>Micro Receiver
> 2
> Micro Servos
>
>Micro Piezo Gyro
The first three items aren't ghastly expensive, but how many "micro piezo
gyros" have you seen for sale? In any case, one must remember that
helicopters are difficult beasts to fly under the best of circumstances --
I'm not sure that BEAM technology would be "smart" enough (unless it was
one of Mr. Rigter's circuits... )
However... the gyro itself might be a Really Neat Thing for BEAM work if
they didn't cost from 56 to 298 pounds (say $90 to $475 American) and,
although quite sophisticated, are only good for one axis (yaw for the
helicopter case). Awfully pricey, but interesting.
jab
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