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And it's now in parts form.
If interested in the frame, it's on Facebook marketplace and spacoast craigslist. Major components (motor, charger, controller, etc.) will be up on eBay over the next...

The time has come for my Ninja 250 conversion to go...

It was a very fun build, with lots of input and support from the crowd here at El Moto. It was a blast to ride, but one afternoon one of the...

Congrats, Ed!

After following the "review" (later revealed to be a simulation of what they thought might happen in some situation that never happened) Clarkson and Company did on the Tesla Roadster for Top Gear,...

I ran across this recently, and have only fast-forwarded through it. I need to watch the whole thing and the related videos, but it looks like he's using 18650s out of used laptop batteries for home...

And it passed :-)

Getting a 16KW array next spring :-)

Voter initiative Proposition 4 is on the ballot today and is designed to encourage investment in solar power by making solar panels exempt from the state's personal property tax. As it would apply to...

Nicely done.

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Sadly, no.

They were running return activated sludge pumps in a wastewater treatment plant (pumping water from the digesters to the influent, to seed it with microbes). Still awesome thought to...

Tuned a PID feedback loop and used it to control a bank of 480v motors.

Forgot that the motorcycle's 72V 15A charger and the shop-vac were plugged into the same circuit. Thank you, circuit breaker, for doing your job.

If I recall correctly, I've also seen the term "continuous" used rather loosely in the past, with CALB using it to describe a 50% duty cycle, alternating - 30 seconds discharging at the c-rate and 30...

I've been running IRC GP-1s on my DR200s, which are the same street/dirt ratio as the stock Trailwings. Since we ride mainly street, the front tires seem to wear faster, with the knobs getting a...

Good luck with that. I bought a charger from them (which turned out to be a Kelly charger with the Kelly logo literally cut out of the label) that was dead from day one. "Sharon" referred me to a...

Nope, they used lead-acid batteries, and then switched to NiMH.

Now here's some more functional 3D metal printing (laser sintered metal powder): http://gizmodo.com/nasas-3d-printed-rocket-injector-test-a-beautiful-inf-746527818

The fact that it stays liquid after printing, with just a thin solid shell seems pretty limiting for practical applications. Who knows where it will lead, though. One advancement here, another there,...

That's a DR-200SE frame - not much battery room there at all. I just consulted with the guy who owns DR200SE.net to verify that.

How could the federal government achieve the goals set out in the petition? The only way I can see that is passing federal legislation prohibiting states from preventing automobile manufacturers from...

Sadly, the Revolver is a design project not an engineering project, which means it doesn't need any basis in the physics/engineering limitations of the real world. Following links from the article,...

And what's so bad about that? Clearly, he's had a lot of fun with electric motorcycles, and is doing the same with his plane. More power to him.

Elio Motors (eliomotors.com) enclosed reverse trike looks promising in that: A-They're serious enough that they worked a deal to buy GM's old factory in Shreveport B-They've got a design that they...

He doesn't need much slack because he has superior geometry.

On most motorcycles when the rear suspension flexes, the rear sprocket moves relative to the front sprocket. Since the distance between...

Neither can I. I believe a misinterpreted Ted's post where he talked about BMS protecting the cells from overdischarging (which LVC does) and mushed that together in my brain to mean "discharging at...

Since motor controllers usually have a current limiting function, having that same function in a BMS seems a bit redundant to me.