Thanks Alex, I changed the MAX_ANGULAR_VELOCITY etc to MAX_VELOCITY in the axes sections but left them as is in the TRAJ section as Brian had suggested that this form was necessary there. I also increased STEPGEN_MAXVEL to 450 in axis 3 section. This has now sparked error messages on startup of:
"STEPGEN: Channel 3. The requested maximum velocity of 22,000 steps/second is too high." followed by: "STEPGEN: The maximum possible frequency is 12693 steps/second." Now I just don't understand this as have had the A axis running quite happily at F400 under G1 last week so how could this be?? One other question - is the Stepgen maximum frequency governed by the processor speed of the PC - the current processor is 1.7Gig but I have another machine I could use with a 2.8 Gig processor. I tried reading the manual on the ini file again but I guess my wetware language processor is failing me as I came away still not understanding just how stepgen, velocity and acceleration work and what I have done wrong..... :-( -- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." >>>>>>>>>>I notice your angular axis has some weird values: MAX_ANGULAR_VELOCITY = 420.0 MAX_ANGULAR_ACCELERATION = 7 STEPGEN_MAXVEL = 200 STEPGEN_MAXACCEL = 7.5 you should have STEPGEN_MAXVEL higher then MAX_VEL.>>>>>>>>>>> -- Best wishes, Ian ____________ Ian W. Wright Sheffield UK "The difference between theory and practice is much smaller in theory than in practice..." ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
