On Friday 07 December 2012 14:42:34 Jon Elson did opine: > Gene Heskett wrote: > > This is quite informative Steve, thanks. It also sends a rather > > powerful message that we really ought to consider that step > > generation is a hardware job. > > Well, I've always thought so, and I hope that isn't just me as a > manufacturer talking. > (For the future, the PRU on the Beagle Bone, etc. might be something in > between.) > > The Pico Systems universal stepper controller can do 4 axes of step > gene, plus 4 encoder > channels (when the step gens are run closed-loop or not used) plus some > digital > I/O and E-stop. Add another board for 8 channels on the same parallel > port. Not the cheapest solution by far, but pretty self-contained and a > mature product. > Which looks to be an ideal solution since it can close the loop with encoders, or with its own output. But that price pretty much puts it out of my reach unless the machine was making me some income.
> Mesa of course, and I guess the Pluto, if anybody can make it work. Mesa I just looked at, also PMDX, but didn't find anything like that unless its a hidden feature of the FPGA programming. So I could also just be dense enough not to grok that. Peter? Blow your horn a bit. :) > Jon > > ------------------------------------------------------------------------ > ------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free > Trial Remotely access PCs and mobile devices and provide instant > support Improve your efficiency, and focus on delivering more value-add > services Discover what IT Professionals Know. Rescue delivers > http://p.sf.net/sfu/logmein_12329d2d > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! Whitehead's Law: The obvious answer is always overlooked. I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
