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A DIY Tracker Tough Enough for the Arctic

Cars That Think

So, I set about building an open-source ice tracker from DIY components that not only proved to be much, much cheaper but also much more capable than the commercial options. This is fast enough to identify wind waves, which typically have a frequency of about 0.2 Hz, and longer swells, which range from about 0.08

DIY 95
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A DIY E-bike Conversion on the Cheap

Cars That Think

At the time, e-bikes were still rather exotic, at least in the United States, so it seemed worth the expense and effort to build my own. It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

At the time, e-bikes were still rather exotic, at least in the United States, so it seemed worth the expense and effort to build my own. It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum.

DIY 98
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Build a Passive Radar With Software-Defined Radio

Cars That Think

Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs. This includes RTLx-based USB sticks built with better supporting components and designs versus the original TV tuners, and completely new receivers such as the RSPDx. James Provost.

Building 100
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Energy Harvesting for Wearable Technology Steps Up

Cars That Think

But to incorporate many different types of sensors, we need different material designs and tools. A little device that harvests energy from a runner’s evening jog clearly is not designed for a massive bison, which can weigh up to a tonne. In the future, DIY may not even be necessary. Batteries die before animals do.

Energy 139
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How I turned a shipping container into a solar off-grid charging station with A/C

Baua Electric

Well, not really cheated, but I just went with a retail solar generator system instead of DIYing that part myself from à la carte components. It’s more expensive since you’re paying for a pre-designed and engineered solution, but damn if it doesn’t make it easy! And the answer is to hopefully give them better wind protection.

Grid 52
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Car Companies Standardize Plug for Electric Vehicles : Gas 2.0

Tony Karrer Delicious EVdriven

I suspect that the correct plug will be of a twist-lock design as is typical of many higher voltage and amperage plugs used in commercial service and for industrial equipment. Perhaps you should have checked that before posting. as stated. 5 Clayton B. Cornell said on April 20th, 2009 at 4:43 am Emily, thanks for spell checking for us.