Michael Jones wrote: >Last night I finished the wiring phase of my project of replacing the >old Chopper Drivers and Vexa steppers on a D&M4S mini mill with a >Gecko G540 and KL23H284-35-4B stepper for the Z axis and 2 >KL23H276-28-4B steppers for the X and Y axis. > >EMC picked everything up quite nicely - I still have to sort out the >charge pump.. but that's just details.. > Did you start with the G540 sample config? I'm pretty sure I included the charge pump in there. (I just cleverly added a link to the G540.stepconf file to the wiki after noticing that it isn't included with EMC2: <http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Advanced_Configuration> )
>I'm quite impressed with the >G540 and the new steppers.. they move FAST and QUIET. The previous >incarnation of the system was moving at a top speed of about 9ipm for >cutting and maybe as fast as 15ipm for rapids (and that was on a good >day) The new system is running up to 60ipm for rapids! > >All went VERY well with a couple of minor issues: > >1) Moving fast is not an issue..going slow is. I haven't completely >narrowed down where it starts having issues.. but it's around 5-10 ipm. > > What goes wrong? Vibration, stalls, loss of position ... > (Kind of off topic for this group.. but.. I'll throw it out there >anyway) > >2) In the previous incarnation I was using a Campbell break out board >with the old chopper drivers and a 4 channel solid state relay to >control the spindle on/off (with plans for some other things like >vacuum pump and swarf-sucker) The Gecko 540 looks like it grounds the >output channel instead of sending a + signal to the output channel. >My Relay has only 1 ground, and 4 inputs. Is there a realistic way >that I can control this relay or do I need to just go get a couple of >single channel relays and rework it? > > Well, until you add other things to it, just connect the G540 to the ground pin and connect one of the "inputs" to +12 or whatever it needs. Later, when you want to add other devices, you'll have to replace it or use some extra circuitry on the G540 output. - Steve ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
