Re: [CAD_CAM_EDM_DRO] HP plotter servo

turbulatordude wrote:

>Hi all,
>
>I pulled apart an old HP plotter and found a pressed can stepper and
>two servo motors. These are pretty small, about 1 inch by and inch
>and an half. 16 volts.
>
>Since they have encoders on the back they seem neat, but I have not
>clue if I can use them.
>
>Has anyone ever tried to use the plotter motors ?
>
>Has anyone ever hacked the controller board for these for CNC use ?
>
>Any ideas what to do with them ?
>
>Since I have three more plotters I'm not sure if I should pull them
>apart for parts or just junk them.
>
>

The motors are quite good. Are they made by Hathaway, by any chance?
I used 2 Hathaway motors out of an HP plotter on a mini-mill retrofit,
and it worked VERY well. I used a 4:1 belt reduction to the original
16 TPI leadscrews.

Jon