Viesturs, The only thing I don't understand is this.
For example such a mesa card, thats a pci card ? I suppose that these cards by default don't do anything and you need to load some kind of firmware onto them ? Where do I find that information then? Or is mesa only provider of these cards and is firmware a whole other story ? Kind regards, Bart Op 4 maart 2012 22:11 heeft Viesturs Lācis <viesturs.la...@gmail.com> het volgende geschreven: > 2012/3/4 Bart Libert (EducaSoft) <educas...@gmail.com>: >> >> 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 ? >> > > What is that You need to do at 50kHz? Generate step/dir signals or > something specific for laser? > >> >> 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??? >> > > Mesa and Pico Systems hardware take the task of the generating steps, > so basically PC just needs to tell, how fast those steps should be, > which considerably improves machine's realtime performance, because > with hardware step generation almost always there is no need for > base-thread and machine can run only servo-thread, which is much > longer and thus less affected by jitter. > >> >> What should I buy to do this hardware step generation and do you have >> suggestions on models/cost ? >> > > Take a look at their homepages: > http://pico-systems.com/motion.html > http://mesanet.com/ > > I have experience only with Mesa cards. You probably need 7i43 or 5i25 > card (under "Anything I/O daughtercards"), depending on availability > of LPT port in Your PC (and LPT's capability to work in EPP mode). I > guess You should ask Jon Elson about Pico's cards (I guess that > Universal Stepper Controller is the one for You) for what would fit > Your needs. Pico is more expensive, but they have more useful > features, like built-in optoisolators on inputs etc. > > Viesturs > > ------------------------------------------------------------------------------ > 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
