I have a Mori Seiki CNC lathe with Fanuc 0i-TC control and a Haas TM-1 CNC mill. They both have independent control of feed override and rapids override. I would not expect or want feed override to control rapids or vice-versa. I guess I can see some logic in the max-velocity approach, but it is different than the other CNC's I use.
-- Ralph ________________________________________ From: Mark Tucker [m...@rmtucker.f2s.com] Sent: Thursday, June 05, 2014 3:46 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Why do dangerous changes suddenly creep in to Linuxcnc and nobody mentions it? On 05/06/14 23:19, andy pugh wrote: > Now feed over-ride over-rides the feed rate and max-velocity over-ride > over-rides the max-velocity. > Seems sensible really, but I can imagine it coming as a surprise. Really ????? Do you actually use it? Take this Scenario:- Max Velocity 2000mm Feed in program 1000mm Turn the max velocity slider down to 75% = Rapids now 1500mm , Feed 1000mm Turn the max velocity slider down to 50% = Rapids now 1000mm , Feed 1000mm Turn the max velocity slider down to 25% = Rapids now 500mm , Feed 500mm This is getting awfully confusing now because what is the feedrate slider doing at this point if you set it to 50%??????????????? Do you get 50% of 1000mm or 500mm. I have never seen such bollocks in 30 years of cnc machine operating. ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
