RE: [CAD_CAM_EDM_DRO] Re: Hysteresis Brake

> Neat idea! I might add that a source of cheap (as in free)
> shaded pole AC fan motors is defunct microwave ovens. Pick
> them up at the curb on trash day, or at the local recycling center.
>
> The little transformer on the oven control panel usually has
> a diode bridge and filter cap, and might have just enough
> current output to drive the brake. Can't beat free for that, either!
>
> Dave

While you're at it, you'll find two large donut-shaped magnets in the
magnetron. Don't forget the turntable motor either, it's a handy little
motor that does around 3-6 RPM. Take the door switches as well, a few
microswitches always come in handy (limit switches).

Apparently cutting the secondary off the main transformer and rewinding it
gives you the basis for a decent motor power supply. I haven't tried this
yet, it's on the 'to-do' list.

Try not to stick your finger in the capacitor, those things store enough
power to kill you.

Microwave ovens are my favorite things, either working or dead.

Tony