Fresh hacks every day
The fan motor on [Pete's] oscillating tower fan conked out on him. It’s a shame to throw away the whole thing, but it’s near impossible to source parts for a small appliance like this one. So he set out to rebuilt the motor and get the thing working like new.
The motor in question is of the brushless AC variety. … Read the rest
We’ve all worked with DC motors at some point. Even if you aren’t a big hardware person, you’ve probably at least picked up a motor as a kid and touched a battery to the leads causing it to whir to life. These are usually standard DC motors and not their brushless relatives. Brushless motors require a bit more work since … Read the rest
You can salvage some nice motors out of optical drives but they can be tricky to control. That’s because brushless DC motors require carefully timed signals used in a process called Electronic Speed Control (ESC). [Fileark] built and ESC using an Arduino and has a couple of posts explaining the concept and demonstrating how it works. His test circuit uses … Read the rest
Hub motors put the power inside of the wheel. [Teamtestbot] goes deep into the hows and whys of building these motors, from parts, to windings, to the math behind the power ratios. The working example puts an electric motor inside the rear wheel of a Razor scooter. Past projects used belts to transfer the work of the motor to the … Read the rest
[Jerome's] been working on some improvements to an electric foot scooter he picked up from a friend. He ordered up a powerful brushless motor and some lithium batteries. His system uses a belt drive and at 33 volts it can reach 25 miles per hour.
He had some problems with too much torque when the motor was first started. This … Read the rest
Subscribe for weekly videos
Recent comments