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Date: | Sat, 9 Mar 2013 07:35:33 -0600 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
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Dan,
What broke? The handle or the actual generator? My experience is that the handles fail long before the generator. Creating a custom crank from sturdier materials would be my suggestion.
Sent from my iPhone
On Mar 8, 2013, at 9:32 PM, Dan Zevin <[log in to unmask]> wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> Greetings,
>
> We're looking for a robust yet small, lightweight hand crank generator that can withstand a lot of use by teenagers. This one gave us about 20 hours of use before the small handle snapped off: http://www.k-tor.com/hand-crank-generator/
>
> The crank needs to output at least 10W of power.
>
> If you've got suggestions for something better, we'd love to know about them!
>
> Thanks,
>
> Dan
>
> ****************************
> Dan Zevin
> Public Education Specialist
> Space Sciences Laboratory
> 7 Gauss Way, MC 7450
> University of California, Berkeley
> Berkeley, CA 94720-7450
>
> (510) 642-8326
> (510) 643-5660 [fax]
> [log in to unmask]
> http://cse.ssl.berkeley.edu
> ****************************
>
> AST:7731^29u18e3
>
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
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