Re: [CAD_CAM_EDM_DRO] Re Power Supply

On Friday 16 December 2005 06:35 am, roboticscnc wrote:

> Just a thought, has anyone used an old car alternator belt driven off
> the lathe spindle motor ? The cost would be virtually nothing and you
> could run 2 in series for 24 volts. The only dissadvantage I can see
> is that you couldn't test toolpaths without the spindle running. Would
> any other equipment be needed ( capacitor, etc. )

You don't need two in series, particularly if you're dealing with the mopar
alternators that use an external regulator -- the output voltage is
completely controlled by what's done with the field winding, and can go
quite high, 24 volts not being a problem at all.

Capacitor? Well, yeah, at least. The normal setup is for the battery
that's being charged to stabilize the voltage somewhat. You wouldn't need
that much of a battery to do so, but then you wouldn't want to overcharge
one continually either.

There's a fair amount of stuff out there on the 'net in the alternate energy
context, a google search will surely return a lot of it.

--
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ablest -- form of life in this section of space, a critter that can
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