Peter, Thank you for your reply,
Well that leaves me with the logical question. What should I buy to do this hardware step generation and do you have suggestions on models/cost ? Kind regards, Bart Op 4 maart 2012 21:47 heeft Peter C. Wallace <p...@mesanet.com> het volgende geschreven: > On Sun, 4 Mar 2012, Bart Libert (EducaSoft) wrote: > >> Date: Sun, 4 Mar 2012 21:36:03 +0100 >> From: "Bart Libert (EducaSoft)" <educas...@gmail.com> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >> Subject: [Emc-users] Looking to replace $4000 machine for $400 machine with >> same results in emc :) yes its a strange title... >> >> Dear guys (and possibly girls, why not) >> >> I have a question which may sound quite newbie, but I can assure I'm >> not newbie at all (just newbie in this matter :) >> >> I am currently building a laser cutter machine and for that I will >> need to be able to output pulses between 25kHz and 50kHz (50kHz would >> be the max but would be nice to be achievable) > > Current software step generation can get to ~50 KHz with EMC but this is with > the best possible motherboard latency (this is not neccesarily related to > motherboard computing power) Some of the Atom motherboards are capable of this > step rate (or close to it) out the parallel port. > > If you add hardware step generation, there is no practical limit to your step > rate (there are at least 2 vendors of Linux supported interface cards that do > hardware step generation) > > > > >> >> Now I tried this with EMC on a very high end machine I have here (A >> Dual Xeon quadcore machine on a serverboard) and emc is aproximately >> capable of doing it. >> >> >> Little detail: Thats a $4000 machine and a little expensive for >> controlling a machine :) Its nice for tests but too expensive to put >> in the same place as the laser. >> >> >> >> >> >> So... is there any way that I could put some kind of card into my pc >> (a regular $400 household machine) which could take care of these >> timings, so that I could nicely to 50kHz, but with a lot cheaper PC ? >> >> >> I have heard about these MESA cards, but I don't know at all what they >> do and I also don't know if they have to be programmed for >> something??? >> > > > There are standard configurations that support step/dir and PWM output >> >> >> So any information / hints / links would be very helpfull. >> >> >> If I understand well, then the biggest problem for a pc is to maintain >> a steady rate, so maybe there is a solution for that ? >> > > Hardware step generation... > >> >> Kind regards, >> And many thanks in advance, >> >> >> Bart >> >> ------------------------------------------------------------------------------ >> Virtualization & Cloud Management Using Capacity Planning >> Cloud computing makes use of virtualization - but cloud computing >> also focuses on allowing computing to be delivered as a service. >> http://www.accelacomm.com/jaw/sfnl/114/51521223/ >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > Peter Wallace > Mesa Electronics > > (\__/) > (='.'=) This is Bunny. Copy and paste bunny into your > (")_(") signature to help him gain world domination. > > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
