I've had an idea for how to produce a dynamo for mountain biking, avoiding bottle dynamos or having wheels rebuilt, allowing for relatively simple retrofitting of a dynamo to an existing bike.
Assuming the technical details work, would the folk of STW be interested in them? I'd guess that cost would be somewhere around the £50 mark.
Is it a magnet on the spokes that passes by a sensor? If so Reelite already make them.
Depends how powerful it would be I suppose! I'm more interested in the technical details though to be honest!
I've seen the Reelights, and the idea would be provide rather more power than they do, and work by a different mechanism. The aim would be to produce at the very least 3W, which is enough to power a reasonably bright LED, but preferably more.
The idea is that you'd be able to run decent off-road lights without batteries.
Assuming it was easily detatchable, for £50 I'd give it a go. Only other way I can think of for this is some sort of chain interface, like a tensioner tag-along
and when you stop?
not poo-pooing, just asking.
Standard standlight setup. Not full whack but bright enough to stop you from being run over.
Hm... rig it to the disc rotor?
£50 would be very good. Could you beat the low drag of a dynamo hub though?
FYI PedalPower do an interesting DC output hub now.
http://www.copycatsolar.com/index_files/Page2167.htm
For summer use I'm more interested now in charging a battery, which you could use to power gadgets, than lighting.
Could you not get it to plug into the smart port on your Exposure?
hmmm - multiple magnets in the inner tubes - passing by a coil on the frame/forks?
charge up my lights/phone/edge as I ride so they're good to go when I need them? yes please.
I think maybe the "extreme" Audax guys may be more interested in this for the VERY long events.
I really hope that you do have a viable system idea.
Best of luck.
I have invented three things. And some less serious things. Of the three serious inventions I have since seen two being made comercially. Gutted. Trying to find someone who can build me a prototype for the third.
Definately go and see a patent lawyer.
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