Re: [CAD_CAM_EDM_DRO] Servo heat-sensors or paranoia?

On Wednesday 08 December 2004 12:11 am, Jon Elson wrote:

> >The other terror is the idea that someone twiddles the table-gibs a bit
> >tight, but they can still move.. So you start out on a 3 hour milling
> >project all the time unaware that the servo amps are compensating for
> >the extra-friction just fine.. Except for the steady 10degrees/min temp
> >rise of the motors...

> Inadequate lube could do the same. That's why my home machine has current
> LED bar graphs on the servo amps. If an axis is binding, I'll see the
> bar graph sit there with a bunch of bars lit and know something is wrong.

I like this idea. Are you using an LM3914 or similar? Connected across a
current-sense resistor?