Alt-BEAM Archive

Message #01735



To: James Wilson jameswilson@globalserve.net
From: Chiu-Yuan Fang chiumanfu@home.com
Date: Wed, 24 Mar 1999 16:33:31 -0800
Subject: [alt-beam] Re: Gears and such


I'm not an expert in this field but isn't that what a common step-up DC-DC
converter is used for?

Chiu

James Wilson wrote:
>
> Yes you can use that 9V motor. You just need to find a way to increase
> the voltage. You say no guff smart guy but how do I do that. Well I am
> just working on that problem my self several solutions come to mind 1)
> use a 9v trigger and two bp-373334 panasonic cells in series 2) convert
> excess current into voltage. The second option seems to be the most
> interesting (also the most difficult). It is possible to convert
> current to voltage and vice versa but I think this would be a good
> exercise for the members of the list. That's right I'm issuing forth a
> challenge. Today is wed 24 march if you figure it out in less than a
> week don't post your solution till next wed so others can exercise their
> creativity.
>
> James
>
> P.S. Oh and as an incentive I'll put up 2 gear motors as a prize for
> the solution. If there are more than one correct solutions one name
> will be drawn at random.
>
> Jonathan D Rogers wrote:
> >
> > OK, so I have a ton of little Lego Technic gears laying around, so I
> > think to myself, "Self, you should find a way to use those gears in your
> > robots!"
> > The problem, of course, is that these great gears are made to go on
> > cross-axles made by Lego.
> > So, the only way to use them is:
> > A. Use a Lego motor(bad idea, they're 9V)
> > B. Stick a gear on your motor that will mesh nicely with the Lego
> > gears(haven't found one yet)
> > C. Figure out a way to retrofit a gear to the motor shaft...
> > I was thinking I could use some super-high strength adhesive to bond the
> > gear to the motor, but then there'd be no turning back...
> > Perhaps I could drill a miniscule hole in one of the crossaxles or
> > something....
> > Does anyone have any suggestions on this?
> > I think building with Legos is a great idea, cause they look good, are
> > totally modular, cheap, and lightweight. Lego wheels are also VERY nice.
> > They make REAL balloon tires!
> > Is there any way I could use that 9V motor?
> > Or does anyone know of some gears that have the same pitch as the Lego
> > gears?
> > Thanks, gang,
> > Jonathan

--
Chiu-Yuan Fang
chiumanfu@home.com
ICQ=5614919
http://www.geocities.com/SouthBeach/6897/beam2.html

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