RE: [CAD_CAM_EDM_DRO] Using Gecko with Flashcut - was Re: best servo drives

Does anyone know if the new version 2 of FlashCUT has additional
configuration parameters for the direction line? The demo available on the
FlashCUT site is still version 1.41 which doesn't seem to have any way to
change the polarity or pulse width on the direction lines.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: Peter [mailto:prenolds@...]
> Sent: Tuesday, January 14, 2003 14:49 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Using Gecko with Flashcut - was Re: best
> servo drives
>
>
> Hi all,
>
> I've tried the transistor outputs rather than the opto outputs and as
> others have stated - the levels are much better when driving the 2531
> opto inside the Gecko - with transistors. As Steve, Mariss, Ron at
> Flashcut and others have stated, optos driving optos is not reliable due
> to the slow edge rise time. In my case however, installing transistors
> did not solve my lost step pulse problem. I tried inverting the step
> pulses and experimented with many different step pulse widths etc. all
> to no avail.
>
> I've ordered some 74HCT74 flip flops recently suggested by Jon and
> intend to try Jon's suggestion to hold the direction signal longer to
> bring the timing more into line with what the Geckos like. I'll let
> everyone know what happens...
>
> Cheers, Peter
>
>
> Alan Marconett KM6VV wrote:
>
> >Steve, others,
> >
>
>
>
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