John Prentice wrote: > > Could be some misunderstanding here. I will contact you off-list about your > experience with moderation but it is very strange that you were removed from > the Mach1Mach2CNC Yahoo! list for asking about APIs etc. To my knowledge, as > a moderator for more than 3 years, only a very few spammers have ever been > removed. > > The driver for the G100 has evolved over several iterations but at all times > the source of it has been publically available. > > Although it would be a daunting task to emulate a G100, drivers do also > exist for ncPod (http://ncpod.oemtech.com/) and Galil controllers and Art > Fenerty will support anyone wanting to add a controller. Of course, how > technically satisfactory this would be depends on the match of Mach3 > architecture with the interface to the motion controller. > Well, I tried to get Art to support, or help ME support my PPMC line of servo controllers under Machx. He declined to do anything on it, after sounding enthusiastic for a short while. The major problem is my controllers don't have "intelligence", need the PC to close the servo loop, and have no buffering of commands. His big complaint is that floating point calculation would be needed in the "real time" interrupt service environment. (I agree that F.P. would be a better way to go, but historical CNC controls have done the servo loop with fixed point calculation.) > Finally, a personal observation. The division of intelligence between the > "user" machine and a "controller" is a particularly challenging problem > because of the conflicting needs to lookahead and buffer motion to provide > responsive jogging and feed-hold. Doing as much in one place (e.g. the PC) > has a lot of attractions! Yes, I certainly agree. It makes monitoring and setup a lot easier, and you can have the PC report the servo performance anytime you think something might be wrong. No need to change cables, download firmware or anything.
Jon ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
