metal lego gears

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jack.valmadre's Avatar (by Gravatar) posted on
June 12, 2005, 7:32 pm
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Hi,
I'm building a lego mechanism in which the gears experiences a high
amount of force.  I've split several 16-tooth gears, and I'm interested
replacing the standard lego gears with metal.  Has anyone heard of
somewhere I can purchase metal replacement gears?  Or alternatively has
someone done this themselves (not necessarily with metal) who could
help me out?
Thanks,
Jack


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Mitch Berkson's Avatar (by Gravatar) posted on
June 12, 2005, 9:15 pm
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Re: metal lego gears

jack.valmadre@gmail.com wrote:

Maybe using multiple gears in parallel would help.

Mitch



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tinmanx's Avatar (by Gravatar) posted on
June 14, 2005, 7:30 am
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Re: metal lego gears


jack.valmadre@gmail.com wrote:

You may want to pose this question to the Lugnet Site, its a Lego
related site: http://news.lugnet.com/robotics/



 
aiiadict's Avatar (by Gravatar) posted on
June 14, 2005, 3:38 pm
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Re: metal lego gears

would be great to get lego bricks, axles,
and gears cast in aluminum or make them
from steel..  My first robot arm was lego
gripper, and I broke a few gears (they were
in "parallel"), and I took the gripper apart.

Rich



 
Wouter's Avatar (by Gravatar) posted on
June 15, 2005, 6:20 pm
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Re: metal lego gears

http://www.telepresence.strath.ac.uk/jen/lego/demag_crane.htm

Has some ideas on how to strengthen lego with metal and getting a very nice
result.





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Buddy Smith's Avatar (by Gravatar) posted on
June 16, 2005, 10:53 am
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Re: metal lego gears

In comp.robotics.misc jack.valmadre@gmail.com wrote:

You could make some gears yourself out of "alumilite". I think it'd be
at least stronger than plastic.

I heard of it through the atlanta hobby robot club. (www.botlanta.org)

--buddy


 
steamer's Avatar (by Gravatar) posted on
June 16, 2005, 11:58 am
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Re: metal lego gears

: You could make some gears yourself out of "alumilite". I think it'd be
: at least stronger than plastic.
    --Despite the allusion to strength in the name there isn't any
metal in Alumilite. OTOH it *is* really neat stuff: it's a 2-part
liquid that, when combined, sets into hard plastic in about 3 to 5
minutes. Generates a lot of heat while doing so, so don't make molds
from anything that's likely to melt or fall apart. It's very useful for
making small solid objects, but I've never tried to use it to make
things like gears with teeth. Well worth getting some, tho, just to do
the experiment; you'll think of a lot of uses for the stuff.

 --
        "Steamboat Ed" Haas         :  Just another fart in  
        Hacking the Trailing Edge!  :  the Elevator of Life...
                   http://www.nmpproducts.com/intro.htm
                   ---Decks a-wash in a sea of words---


 

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