Hand crank

Points of views and questions about the OLPC project. What should it be? How could it be better? Where is it needed most? Ask your questions here and let your opinion be known.

Hand crank

Postby adtrace » Mon Dec 08, 2008 5:19 pm

Hello, congratulations on the new marketing idea (buy one, give one). It's good, and I hope proves to be very effective.

I was familiar with this project back when it was in the brainstorming stage, and one of the biggest selling points was the hand crank for regions with no power. I had understood that this was to be built into the laptop originally, but now it appears that it is a supplemental part that needs to be ordered? Can someone clarify this?
adtrace
 

Re: Hand crank

Postby AuntiMame » Mon Dec 08, 2008 7:39 pm

adtrace,

The hand crank proved to be unfeasible. There were prototypes created: I saw one at the OLPC offices. But you have to crank for hours to fully charge the battery!
Child: Daddy, daddy! I have homework. Will you charge my laptop for me?
Dad: groan!
:lol:

There are very low cost solar panels available. And OLPC works with large deployments to determine a good power solution.

The XO is designed to be tolerant of power fluctuations, so it could be charged using wind, water, solar, car battery, generator, etc.

Hope this helps,
AuntiMame
http://www.XOExplosion.com
Silly name. Great stuff for your XO laptop.
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Re: Hand crank

Postby adtrace » Mon Dec 08, 2008 9:38 pm

Hey AM, thanks so much for the reply. I was very curious. So my new question is that when a child receives this laptop, if they're in an area where there's no power (and even in one where there is, it would be difficult to know if its stable) are they provided with the solar panel or some kind of device to help charge it? Or that's at an extra cost?

Thanks so much for the quick reply.
adtrace
 

Re: Hand crank

Postby jakeosx » Mon Dec 08, 2008 9:42 pm

i thought there was a yo-yo like thing that someone had made? no? and there had been talk of a sewing maching set up where you pushed a pedal to make power... but as already said, these still would take some time.
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Re: Hand crank

Postby ektoric » Tue Dec 09, 2008 3:41 am

There are loads of information on the wiki about alternative charging sources. http://wiki.laptop.org/go/Battery_and_power and http://wiki.laptop.org/go/Peripherals#Power to name a few

adtrace wrote:if they're in an area where there's no power (and even in one where there is, it would be difficult to know if its stable) are they provided with the solar panel or some kind of device to help charge it?


Per http://wiki.laptop.org/go/Deployment_Gu ... astructure, the choice of off-grid power source is determined by the participating governing body. They may decide that solar power is most efficient in their locale and ship the XO laptops with solar panels. Others may choose other human powered generators. Unfortunately I do not have at readily under my fingertips the wiki links that show which power units were shipped in the different pilot programs. But I do remember that some were indeed shipped with alternative power sources instead of the wall outlet plug.
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Re: Hand crank

Postby AuntiMame » Tue Dec 09, 2008 5:43 pm

adtrace,
the solar panels are low cost -- but still extra $.

jakeosx,
The Yo-yo is still in development and the treadle thingy is commercially available from Freeplay.

follow the links that ektoric listed for more comprehensive info.

Aunti
http://www.XOExplosion.com
Silly name. Great stuff for your XO laptop.
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Re: Hand crank

Postby marryroy » Thu Sep 17, 2009 1:05 am

Hello...
I am marry here.I read your comment regarding the hand cart,The problem that you have discussed is not understood by me.So please try to describe it little briefly.I hope that you will get nice solution of that.Thank you for sharing the comment...
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