I spent the last few hours working out the mechanics for my electronic moped project - it should turn out to be fairly practical if I've got my estimations right. The range on about £450 worth of batteries is the limiting factor - about 20-35 miles depending on speed and mechanical efficiency. The problem comes in when you factor in hills - even a mere 5% incline is enough to significantly eat into battery life. Combined with a 1 hour charge time, it should be pretty useful as a commuter or student vehicle though. I still need to wait to hear about sponsorship, funding, and the legal status of my "donor" moped, and look into the process and costs of registering the vehicle for on-road use after it's been rebuilt, but it looks like the project is, at least in theory, possible. Even if it isn't entirely road-legal, 6kW (8hp) in something that weighs around 45kg will be pretty fun for off-road use.
The 3D printer project is not entirely forgotten either - expect to see more on that soon...
I'm also just going to leave this here regarding the quadrotor:
Yours textually
Charlie
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