in your axis section - it seems your missing MAX_VELOCITY = 6.7 (you want some stepgen headroom.)
sam ----- Original Message ----- From: "John Thornton" <[EMAIL PROTECTED]> To: <emc-users@lists.sourceforge.net> Sent: Friday, October 05, 2007 11:47 AM Subject: [Emc-users] Max Speed >I have a CNC4PC C1G parallel port interface card driving a Gecko 203v. > I have a 28vdc power supply and I am running the stepper without any > load just to get my configs setup... The highest velocity I can get is > about > 70 as reported on the Axis screen no matter what I set F at. > If I do a MDI G1 F100 X10 or G1 F400 X10 > I get the same velocity reported of about 70. > > If i do a G1 F50 X10 I get the expected velocity of about 50 > If I do a G1 F25 X10 I get the expected velocity of about 25 > > I've ran the latencey test on the machine and used the spreadsheet to > figure out what to set the base period at. > > My config is: > BASE_PERIOD = 15000 > > DEFAULT_VELOCITY = 0.0167 > MAX_VELOCITY = 7.0 > DEFAULT_ACCELERATION = 15.0 > MAX_ACCELERATION = 20.0 > > My Axis is: > > MAX_ACCELERATION = 2.0 > STEPGEN_MAXVEL = 7 > STEPGEN_MAXACCEL = 2.1 > BACKLASH = 0.000 > INPUT_SCALE = 3000 > OUTPUT_SCALE = 1.000 > MIN_LIMIT = -100.0 > MAX_LIMIT = 100.0 > FERROR = 0.050 > MIN_FERROR = 0.010 > > When I run tests the drive turns the correct number of > turns per inch (1.5) so I'm reasoning that I have the scale > correct... > > Any tips on where to start looking would be a big help... > > > Thanks > John > > ------------------------------------------------------------------------- > 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 > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
