Re: [CAD_CAM_EDM_DRO] motor types

From: <info.host@...>

> Weyland, look closely along the armature for anything other than bearings.
> The armature will only join to bearings if it's a normal motor. The weird
> pattern you see is almost certainly just the windings. They are wrapped
> around a laminated core pattern on a few motors I've taken apart to limit
> induced eddy currents in the former they are wrapped on (Like in a
> transformer). The encoder, as I've found out this week, for most CNC type
> servos is a round disc. The disc is on the rotor and as the rotor turns so
> does the disc. There are detectors by this disc that send each time the
> signal is broken and started, creating pulses, the coding. Check what the
> little PCB actually attaches to except those wires, does it have any

others

> leading off it?
>
> John

Heilsa John~!

I tried to get a better look, but I can't get the *possible* encoder
off the back right now, as I don't have an allen wrench small enough
to undo the set screw. (:<)

I *did* say "phukkit" and hooked the two wires coming out
of the actual motor (brown and purple) to the yellow and black leads
out of a computer power supply.

Zing~!
Spun like a mutha.
Reversed the wires.
Zing~!
Same thing, only opposite.
Took the gear reduction off and put it on the shelf.
I'm starting to think this *is* a servo...

All I gotta find out is what the each of the three wires on the encoder
do...
and which gets what for power, etc...

Weyland