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Topics - evilpsych

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Generators / Magnetic Clutch???
« on: January 05, 2007, 03:03:45 PM »
Has anyone toyed around with the idea of using a magnetic clutch (such as is used on automotive A/C compressors to engage the connection between generator and your flywheel? I was working on my jeep york-powered 10cfm onboard air-compressor system yesterday, and it hit me. If your lister was to be used for more than just power generation, i.e. pumping water, or driving something else, like a seed press.. it would seem to be simple to have two clutches, one for each device, and as you needed extra electricty as your battery banks died down, a simple relay would kick in, disengaging the mechanical device you were running, and engaging the gen-head. All with a minimum of work necessary to do so.

I'm not sure just how powerful the clutch would have to be in one of these situations, but they're just simple electro-magnets and the concept has been used for years in other technologies..

What say you?

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Engines / Machine Drawings of Lister?
« on: January 02, 2007, 10:33:22 PM »
Hey guys.. are there open-source plans for the lister? I think it would be pretty neat if someone here in the US was able to refine the lister down, and make their own hobby castings. There's a lot of fellows playing around with home cast-iron foundries.

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Lister Based Generators / calculating gen-size
« on: January 02, 2007, 08:07:41 PM »
Hey guys.. I'm new to the forum, but have lurked about the various off-grid home-power sites, and I've got a question..

How do you calculate what size generator you need? For instance, my current elec. co sends me a bill with the average kwh per day usage. Is it as simple as taking this number, dividing by 24, and sizing your gen to be slightly larger?


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