Tag Archives: motor

Taking the DIY E-Bike Off-Road (and into the water)

There have been a few questions about this ~300w ebike and the places it can go.  I try to address some of those through experimentation in this video.

Among the tests done, I go over a few speed bumps, jump the curb, zip through some uneven grass, displace some sand, and hit the waves. All on two wheels.

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Hard Drive Solenoid Engine With Trinket

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Solenoid engines are nothing new, though they still seem to be a fairly common project among the curious. Using a hard drive makes such a project much more simple and straight forward, that is if you want to keep it that way.

This solenoid engine uses a software control loop (code below) running on a 16MHz Adafruit Trinket to adjust its speed. The program specifically alternates between a modest 180RPM to a smashing 3000RPM every five or ten seconds! Watch the video below!

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