Electric recumbent bicycles


If you liked our post about bikes and skates with weed whacker engines but want more power and more challenge, we have good news. We’ve found some great instructions on adding motors to recumbent bicycles, which we’ll take you through after the break.

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XBox 360 Hacking 101 extra


[BlueMoon] let me know about a translation of an interview posted over at xbox-scene. The original dutch version is here. It’s a very good overview of XBox 360 security and the exploits needed to take advantage of the hardware.

If you dig EVs, you might want to check out my latest experiment. I’ll be building a EV, but each step of the process will be defined by reader votes. It’s $1/vote, with the idea that the votes will pay for the project.
[Jay] sent in a little info on streaming audio and sometimes video to your Wii.

[Robert] sent in his research on building and testing diy GSM antennas for extending rage range.

Siamese electric motors


I’ve been meaning to post something about these for a while. Jim builds motors for EV hobbiests on the side – one of his cooler creations is the siamese electric motor. Some others have used belt drives to combine motors, but Jim actually builds the motors into a single unit. He built this set of 8 inch twins for the White Zombie drag racer.

I pumped Jim for more details, but he’s not done tweaking his next set of siamese motors. So, why is this even a hack? It’s a nice piece of machine work, but it gets interesting if you consider some stock specs. Most EV cars get 9″ motors – these are rated at 19hp or so. They take some monster hardware just to drive – high amperage, high voltage. Running a pair of 8hp motors can produce similar power with significant cost savings – everything gets cheaper. To generalize, you need a $1500 motor and $1000 controller just to get in the game. Not to mention that rebuildable forklift motors can be had for a song.

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