Sebastian, > Another brave hm2 testing volunteer! Welcome! Yep, slow system, problems with parport and not enough I/O made me buy two 5i20 cards (and a 7i43) card. One 5i20 for the main system, one as a backup/second system at home and the 7i43 to play around with and try some FPGA programming.
I set up a 'new' system with EMC2 (Ubuntu 8.0.4 LTS release) from the live CD, updated this to 2.3.0~beta2 and started to play around with it. Both with my existing parport and with the new hm2 config. In my situation (milling a curved surface with a radius around 30 cm in all 1mm long line pieces) the hm2 config is 10% faster than the parport one. > One problem with the configs you linked below is that > [TRAJ]MAX_LINEAR_VELOCITY is greater than [AXIS_?]MAX_VELOCITY. That > means the hm2 stepgen will fall behind where the trajectory planner > wants it to be, leading to following errors if it gets too bad. > This did the trick. I changed/added the [TRAJ] parameters and now even tort.ngc works almost perfectly! Almost ... the first time I start EMC it still gives a joint following error on axis 0 but if I quit and restart it's OK. There is still a lot to do in cleaning up the configs and making sure that all my other I/O gets in there but this is a promising start. > The humming and dithering across the setpoint is a known bug in > 2.3.0~beta2, it's been fixed in CVS and will be in the next release. > I could not resist; 30 to 45 minutes of downloading and compiling and I have the trunk running. Humming and dithering is fixed. Still works almost perfect. One very small thing is that the splash screen reports 2.4.0~pre and the title bar of axis 2.3.0~beta1 but I think I can live with that ;-) Thanks, Rob ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users