> On 4 July 2010 09:15, Ian R Upton <[email protected]> wrote: > >> In the 'Axis' GUI I select the machine axis and click on home. The >> axis >> commences to move, it then sits there with the motor whisltling and >> after some time the motor moves and then stops. I conclude that >> during >> the whistling phase the signals to the motor driver are directing the >> motor to work at a speed beyond it's capability. > > Yes, it sounds like the stepper is being asked to move far more > rapidly than it can manage. > >> This appears to be borne out by observing the display on the Axis >> GUI. >> >> When homing the 'Vel' (velocity) display indicates 6000. > > Impressive, it it was true. That's 6 metres per minute.
Not at all, a lot of woodworking machine operate at these speeds. I generally cut at 4000mm/minute and I often do facing at 8000/minute. I know people that have the same machine as mine dp facing at 28000mm/ minute. I cut less fast because I have a router and not a stronger spindle.. Ian, it's good for yourself to start thinking in speeds of mm/minute rater then per second. I myself started to think in mm/sec, because I can visualize that easer, however most CAM software and also Axis displays speed per minute and not per second. Else you end up with very very slow cutting speed! Ries ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
