Electric Snow Scooter

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[Dane] decided he wanted to make a rather large electric scooter, capable of taking him through even the most inclement weather — that’s right, even snow.

Well, after about 18 months of stop and go work it is finally complete — for now. It features an impressive 7kW brushless 3-phase motor, a massive lithium ion battery pack and more custom parts then you could shake a stick at!

The frame started out as one of those big push scooters from the 80’s, in fact, it is the same as the one shown in Macklemore’s Thrift Shop video (pic)! But since then it has had many a modification done to it — it looks as though the front end is the only part that wasn’t touched!

He’s got an incredible build log  his website, so if you want to build your own (you will once you’ve seen the video after the break), it’s a great starting point.

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Self Balancing Unicycle Built From Old Scooter

[Glenn] had an old electric scooter/motorcycle in his garage that had long ago given up the ghost. Without a working battery and motor controller this scooter wasn’t beyond repair, but [Glenn] thought he could use it to build something much, much cooler. What he came up with is a self-balancing unicycle that borrows inspiration from a Segway and other self-balancing robots.

After cutting the drive chain off his scooter, [Glenn] began work on installing a new motor controller and battery. To make this unicycle balance itself, he would need a few gyroscopes and accelerometers provided via an Arduino and Sparkfun IMU shield.

After tuning his PID loop, [Glenn] hopped on his new ride and took it for a spin with the help of a pair of ski poles. It’s much easier to ride than a traditional unicycle and [Glenn] says he’s getting better at riding it.

A123 LiIon Battery Pseudo Extra


Every so often I have to slap myself in the head. I’m surprised that we haven’t covered these things by now. DeWalt’s been selling a LiIon 36 volt battery pack that’s full of the latest A123 cells. These are the same ones that were used in the Killacycle. (I think they’ve got a new batch of cells now).

A while back, [Jeff] sent in a circuit for using multiple packs, leaving the internal BMS in place. [The link is fixed now]

[Robert] sent in a scooter that’s been designed to run these same cells. The custom fabrication and machine work looks fantastic.