Re: Gecko drives and EMC

[Jon Elson <elson-at-pico-systems.com>]

Robin Szemeti wrote:

>Hi,
>
>Seems I have returned to EMC again after a few months away .. 
>
>So ... time has passed but the problems remain the same :)
>
>I'm still trying to drive some Gecko drives and stepper motors to a decent 
>performance with EMC.  The Gecko's are the 'microstepping' flavour (for a 
>variety of reasons I need the fine control/smoothness of microstepping) ... 
>the motors are produce good torque up to around 2Khz ... thus I need a 20Khz 
>step pulse train into the drivers to reallise this potential.
>
>We've had this discussion before and it was consdiered even with a fast 
>(1.2ghz+) cpu, 20khz would be pushing it.  That still the perceived wisdom?
>
>and ... if that is the case, what should I do? ... did Jon Elson get that 
>gecko drive board finished ? .. is it available for sale to Europe?
>  
>
You must have been out of touch for quite a while!

My Universal Stepper Controller has been available since last fall.  I will
be glad to sell it in Europe, in fact I already have delivered one to 
England.
I have run a Vexta 5-phase drive to 20 KHz and it worked VERY nicely.

See my page on it at http://jelinux.pico-systems.com/univstep.html

Jon