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From: "Mike Engelhardt"
Subject: Re: Core gapping techniques and general SMPS magnetics stuff
Date: 15 Dec 2002 17:47:58 GMT
Organization: Concentric Internet Services
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> > Personally, I just use a Dremal tool with a grinding
> > wheel to shorten the center leg to make a gap.
> This is very interesting, as I have been contemplating how I might
> produce a fairly accurate grind on the center leg. I envisioned
> something like a table saw with an abrasive wheel, or ideally a glass
> crafts diamond wheel grinder of some sort that can make a flat grind.
> It would seem very difficult to get it flat with a dremel tool.
The gap doesn't have to be very flat. After you get the supply
working with shims, measure the inductance. Then remove the
shims and start grinding until you get back to the same
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