On Wednesday 14 January 2009, Peter Restall wrote: >Afternoon All, > >This is my first EMC Users post (first mailing list in a while actually), so >please be gentle with any etiquette misdemeanors ! > >I'm just beginning to put together a design for a hobby CNC machine, with my >own driver board electronics - glutton for punishment really. Looking > around, EMC seems to be the way to go in terms of controller software - as > a GNU/Linux user, because this hobby project is on a budget, and because it > looks to be nicely featured and extensible. > >So, my question for the time being is, are the parallel port signals (ie. > the waveform/timing diagrams) documented anywhere ? For instance, are the > axis step signals sent as pulses (ie. step the motor once per low-high > transition), or are they flat (ie. keep stepping the motor until the signal > goes low) ? I've seen the StepConf documentation - which is the closest > I've found - but that doesn't really explain a lot (it's more end-user > oriented).
Its a pulse per step, always has been AFAIK. >I'm sure I will have more questions, especially around timing, so if there > is a source on the 'net with this sort of low-level detail that I haven't > seen yet, I'd appreciate a link. It's either that or you're going to get > sick of my constant e-mails pretty quickly...! Generally speaking from my own experiences here, as long as each question is new, no problem. >Thanks in advance. > >Regards, > >Pete Restall Welcome Pete. Be aware that there is also an IRC channel, #emc where as likely as not, someone knowledgeable enough to help will often reply quickly. -- 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) 1: No code table for op: ++post ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
