On Sat, 2008-11-15 at 18:05 +0000, Chris Morley wrote: > Hi guys: > > I am trying to help someone on cnc zone to use M100 but I don't > understand the manual desription nor can I find anything in the wiki > to help. > the manual says: > > To invoke a user-defined command, program M- P- Q- where P- and Q- are > both optional. > The external program “Mnnn” in the directory [DISPLAY]PROGRAM_PREFIX > is executed with > the P and Q values as its two arguments. Execution of the RS274NGC > file pauses until the > invoked program exits. > > Does this mean the external program must be named M100-199?
Yes > What is meant by PROGRAM_PREFIX ? pathway? >From my lathe .ini file: ... # Sections for display options ------------------------------------------------ [DISPLAY] DISPLAY = axis LATHE = 1 PYVCP = spindle.xml # DISPLAY = usrmot # DISPLAY = tkemc CYCLE_TIME = 0.100 HELP_FILE = doc/help.txt POSITION_OFFSET = RELATIVE POSITION_FEEDBACK = ACTUAL MAX_FEED_OVERRIDE = 1.2 PROGRAM_PREFIX = ../../nc_files/ ... you can see that the M1xx files will need to be two directories up from the current directory and in nc_files. I believe that makes it /home/user_name/emc2/nc_files. You can change PROGRAM_PREFIX if you want. > I assume the external program can be in any supported language or are > we talking G code? My guess is that you can not execute G-code, but bash, python, C or any non-real-time executable would work. I use a bash script to create missing g-codes for my lathe, such as M102 Collet Open: file = /home/kwallace/emc2/nc_files/M102 ----------------- #!/bin/sh # Custom - Only intended for Kirk Wallace's HNC lathe, KW 20070823 # M102 - Opens Collet Closer halcmd setp parport.0.pin-07-out False halcmd setp parport.0.pin-06-out True exit 0 ----------------- I use M102 in my G-code files for opening the collet closer. Kirk http://www.wallacecompany.com/machine_shop/ ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
