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Massive DC Forklift Motor

December 1, 2020

Forklift motors have been popular for a long time in DIY Electric Vehicle Conversions. They tend to be Series-Wound DC motors, which offer tremendous torque at low speeds and are common enough that that can often be found at junk yards. A few years ago, my friend, Tom, and I scrapped out a 6,000 lb […]

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Liquid Cooling for Nissan Leaf motor

May 24, 2020

I’m getting ready to bench test the Nissan Leaf motor, but both the motor and inverter use LIQUID COOLING! I doubt the motor and inverter will make much heat at all when bench testing. However, since I have to figure this out sometime anyways, I thought I would get it taken care of right now. […]

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Nissan Leaf Electric Motor from Junk Yard

February 19, 2020

Pretty excited that I just picked up a Nissan Leaf Motor! Yesterday, I drove to Fond Du Lac, Wisconsin to Diamond Auto parts to pick up not just a motor, but also the gearbox and inverter for a Nissan Leaf. The Leaf motor packs quite a bit of power into a small package, and they […]

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Electric Car Power Brakes

May 19, 2014

I was recently asked how brakes work on my electric Geo Metro. I also noticed that every once in a while lately, my vacuum pump wasn’t powering up, so I thought it was about time to take apart the electric power brakes system and examine it. While I did, I took a few photos to […]

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E15 Motor Rebuild

July 7, 2013

After looking over the Elec-Trak E15, I saw that one of the blade motors didn’t spin very freely. I went about removing the motor from the deck to see about opening it up, finding out the problem, and rebuilding as needed. Unfortunately, I got stuck on NOT being able to remove the hub that the […]

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The ENERGIZER – DIY Exercise Bike Generator

April 14, 2013

I’ve always been impressed with exercise bike generator displays at renewable energy exhibits. So, a while back, when I saw a classic Schwinn exercise bike at the thrift store, I nabbed it with the plan to make it into an EXERCISE BIKE GENERATOR! Earth Week is only a week away, and since our local eco-group […]

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PWM Disco Ball – Lights, Music, and Electric Cars

December 28, 2011

At home, I have a small LED light that is designed for use under cabinets. I use it mostly to illuminate one side of my aquarium, and I occasionally pull it out to use it as a light for filming video. The problem is that it is quite a bit brighter than the other LED […]

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Motor Theory Lecture Video

June 24, 2011

Hey Folks, One of the YouTube video channels I subscribe to is “EVTV”, by user  marionrichard . In this weeks episode, he shows not only have a Netgain 11 High-Voltage motor works, but really gives a great lecture on electric motor theory, covering the basics of AC motors, and getting very detailed, but still completely […]

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PWM DC Motor Controller / LED Dimmer

April 21, 2011

Last week, I started work on a very basic DC Motor Controller.  It’s a really simple circuit that just turns voltage on and off, but very quickly (like about 1000 times a second..) By varying the time off vs time on of the circuit, a Light Emitting Diode (LED) can be dimmed, or a DC […]

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World’s Simplest PWM Motor Controller

April 16, 2011

Well, I did it! Knowing nearly nothing about electronics, I managed to finally build my own PWM (Pulse-Width-Modulation) DC Electric Motor Controller! OK, that makes it sound way too fancy. At the beginning of the semester, I signed up for a non-credit electronics class at the local two-year technical college. I’ve been wanting to take […]

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