Muller Dynamo

[DeepCut]

This; I am already aware of.

... .

Can an arduino be programed for inversely proportional pulse width, and/or timing based, on RPM?
IE: Twice the rpm = 4 times as much advance and/or 4 times less pulse width etc.

I imagine a system, if working properly, should NOT increase RPM under load but, merely, use less energy from a battery as it uses more energy from the vacuum.

}:>

Yes, the arduino is easily programmed to do that. There's a PWM library and a frequency library, so you could measure the length of your trigger and adjust pulse-width accordingly.

You can do what you like - it's a programming language

Your rotor is looking lovely, by the way, nice build.


All the best,

DC.

[Scorch]

Thank you for the compliment on my build.
This device, to me, is actually pretty easy to build.
It's mostly just circles, and holes, and I actually did use my sewing machine to wind coils. . .
And already have timing plates from the mechanical switching setup so this will work well for the hall sensor.

Thinking about making one, or two, more magnetic timing disks.
One disk could actually have more than one size set of magnets.
For example I could make a 4" disk with 1/2" magnets near the edge and 1/4" magnets, further in, for two different pulse width choices.
Which is good for experiments but I will, more than likely, graduate to an arduino controller.

I did discover an entire tutorial video series for arduino controllers; which do appear to be very useful for many things.
And I, really, should learn how to use them!

Part one:
http://www.youtube.com/watch?v=fCxzA9_kg6s

All the best to you; as well.

}:>

Yes, the arduino is easily programmed to do that. There's a PWM library and a frequency library, so you could measure the length of your trigger and adjust pulse-width accordingly.

You can do what you like - it's a programming language

Your rotor is looking lovely, by the way, nice build.


All the best,

DC.

[DeepCut]

A sewing machine to wind coils - excellent

Thanks for the youtube link, i'm fairly new to the arduino.

Happy new year,

DC.

[Scorch]

Another minor update.
I managed to spend another hour working on this project today.

I finally got fed up with the mounting tape for the terminal blocks.
The stuff sticks very well to the acrylic but I have had ongoing issues with the terminal blocks just not adhering well even with high end mounting tape and clamping pressure.

SO, today, I spent an hour drilling 36 holes and installing nylon cap screws to secure all the terminal blocks.
So, now, it's a lot more reliable and looks better.
Also found some knurled, nylon, thumbnuts for the timing disks.

At this point all the hardware is complete and I have no more excuses not to start throwing together some electronics and, hopefully, will have it actually running within the next few weeks.

That is all for now.

}:>

[DeepCut]

Looking good scorch, it's important to have that stable test-bed and it looks like you have.

Looking forward to your experiments


All the best,

DC.