Re: [CAD_CAM_EDM_DRO] Re: Re: Cnc PCB drilling machines z axis linear pot

----- Original Message -----
From: "Ray" <rehenry@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, December 10, 2001 4:59 PM
Subject: [CAD_CAM_EDM_DRO] Re: Re: Cnc PCB drilling machines z axis linear
pot


>
> PeterS
>
> There are engineers and designers who would take exception to a couple of
> your pronouncements.
>
> > From: "Peter Seddon" <peter@...>
> <s>
> > 4. Are analogue devices and thus less accurate
> > 5. The signal requires conversion to a digital signal before it can be
> > used (unless the system is fully analogue).
>
> I'm not wanting to start a digital v analog(ue) war here -- there are
> other lists for that. IMHO analogue systems are not inherently less
> accurate but they may well be when constructed from hobby grade
> components. To the contrary, computation delays, stepped or descrete
> resolutions, and rounding errors may well make digital signals less
> suitable to a critical task than an analogue system.
>
> As we have come to realize from some digital software designers and
> publishers, these systems may need as much care and feeding as an
> ocasional fuzzy potentiometer.
>
> RayH
>
>
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