Re: Why is the push to such high step rates (Grex and Arc100)?

No pain felt here, so not sure what you mean by that question.

As for the cost, well, yes it does cost more and that is what I am
trying to figure out along with a practical application. See, for the
hobby folks here, they can use a PC with MACH software and a parallel
port (which is free) and get upwards of 45,000 SPS. On the other hand,
they could buy one of these new devices and get 45,000 SPS at a price
of around $500.00 give or take. The 45,000 SPS is in reality beyond
the need for the vast majority of CNC machines people talk about in
these forums.

Both of the devices, the GREX and the ARC100 promote some very
intresting features and performance specs. At first glance I thought
I might be able to utilize these features but after looking at the
numbers a bit more closely, I couldn't see a practical application for
hobby use. So, that got me thinking about commercial applications
and, well, I just couldn't think of one so I had to ask.

I know from the posts by people in the various groups that there are a
number of these units out there. What is it that they are building
that utilizes such amazing performance?

Chris



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mariss Freimanis"
<mariss92705@...> wrote:

> Yes there are. They are usually embedded OEM applications, non-CNC
> related.
>
> How does it hurt you if a piece of equipment can generate high step
> pulse rates? Just use a lower speed range. The technique used has no
> cost associated with the rate of step pulses generated. It costs the
> same to generate 4,194,304 step pulses per second as it costs to
> generate 1 pulse per second.
>
> Mariss