Re: [CAD_CAM_EDM_DRO] Motor Noise?

Where can you get ferrite beads or how can you make them.
I have an application where I fear to get 1,5 MHz radiation into
the mini PLC. I haven't seen ferrite beads for years and have no
supplier for them. (asked already all local electric and electronic suppliers)
Any answer is very appreciated.
Thanks
Sven Peter

Alan Marconett KM6VV wrote:

> Hi Phil,
>
> You might try some of the "clamp-on" ferrite cores used for computer
> cables. At the speed control, at the computer parallel port cable, at
> the driver, etc.
>
> Alan KM6VV
>
> phil wrote:
> >
> > I'm using a router speed control with a small laminate style trimmer and since installing the speed controller I've got problems on my Z Axis with lost steps.
> >
> > If I remove the speed control then all works well.
> >
> > Any suggestions on how best to -
> >
> > a) reduce the noise from the speed controller and/or motor
> > b) shield the steppers from the noise.
> >
> > thanks!
> >
> > Phil
>
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