Alt-BEAM Archive
Message #01736
To: James Wilson jameswilson@globalserve.net
From: Chiu-Yuan Fang chiumanfu@home.com
Date: Wednesday, March 24, 1999 4:46 PM
Subject: 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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