Re: [CAD_CAM_EDM_DRO] How to establish repeatable home position w/steppers?

JanRwl@... wrote:

> In a message dated 27-Aug-00 22:51:23 Central Daylight Time,
> dengvall@... writes:

Opps.... maybe I'd better explain. That is 0.02 nm in wavelength resolution not mechanical resolution.
The stepper motor drives a screw as in a micrometer which drives the sine bar ....which changes the angle on the grating, which
then delivers a different wavelength to the slits and thence to the photomultiplier.

Sorry if I did such a good job of getting your attention. :-)

BTW I think I listed the wavelength of the Cu line as 224.7 not 324.7 as if it makes any difference.

Dave

>
>
> << With a resolution of 50 steps/nm.
> it never missed. i.e as long as steppers are not too loaded to move they are
> very reliable. >>
>
> Yep! But 0.02 nanometers per step???? REALLY???? THIS planet??? WOW!
>
>
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