Re: [CAD_CAM_EDM_DRO] Not quite a troglodyte, but......

Brian Lindsay wrote:

> Can someone point me in the direction of an information source for
>data sheets (or similar) for what seems to be an obsolete custom
>servo motor-tach? What I have is a pair of Electro-Craft PM SM-T
>units that came on a very nice 400 lb custom made X-Y table with
>ballscrews and about 18" travel in both directions. I would like to
>be able to use the motors but have no CNC background, so kindly bear
>with me when my unique terminology strays....
> Particulars are: Electro-Craft Corp
> Hopkins, MN
> Permanent magnet Servo motor-Tach
> Model 660-ENC (?1000?)
> PN# (?1000?) 7-5552-1
> Date code 131
>
>

An Electro-Craft E-660 motor is 5.5" long and 3.25" diameter, with 2 visible
brush holders on it. Max cont torque is 120 Oz-In. I have listings for 5
different winding patterns, with Kt of 13.2 up to 88.5 (Oz-In/Amp)

Anyway, the motors are ALREADY sized for the table, so unless it was in
a non-cutting
application or set up for extremely low speeds, the motors are probably
fine for
the table.

Jon