Hi. A nice feature my previous cnc software (PC/NC from lewetz.de) had was the option to limit the rate at which Z travelled down (on non-G00/non-Homing moves only). This made sure that even if I accidently programmed a too high feed rate, I still wouldn't break the tool just by sinking it into the material too quickly. PC/NC only had maximum feed rates for al axes combined, but still handled Z seperately to a certain degree. For example: G00 F120 X0 Y0 Z0 would set the G00 feed rate (overall) to 120mm/min in my setup. A subsequent G01 F10 Z1 G01 F60 X1 would set the maximum non-G00 feed rate on Z to 10mm/min while X/Y were set to 60mm/min. Combined X/Y/Z moves would result in a combined speed of up to 60mm/min provided that Z doesn't move faster than 10mm/min on its own.
I think I won't see similar behaviour in emc, but would it be possible to configure emc2 so that it handled non-G00 moves with a different maximum speed (preferably even with different limits for positive and negative speeds -> sinking in and rising out of the material)? Ideally, this would even be configurable via the tool table. An example: I have a drill which can sink into the material at 0.5mm/turn of the spindle and a ball end mill which can sink in at 0.2mm/turn. If I could configure an extended tool table to provide feed rate limits in relation to current spindle speed, that would be awesome. But for now, I can certainly try to work around these problems. As a side note: It's relatively easy to work around them especially since I do most programming using a nice little Perl module I wrote, which works nicely with PC/NC already and is generic enough to soon support emc2, too. If anyone is interested in it, leave a mail or just have a look at it (sorry, the code isn't very clean yet) at: https://mail.incase.de/svn/cnc_gcode/trunk/CNC-GCode/ (or https://mail.incase.de/viewcvs/trunk/?root=cnc_gcode if you would like to see diffs, too) If anyone would like to work on it with me, I can grant SVN access easily. cu, Sven ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
