john, i wasnt aware that emc used floats ther it is unusual in cnc to do so, but thats an observation
the 'nice number' refers to the numerator and denomimator which are outside if emc which are inside the driver unless these 2 are nice numbers ( ints divisible by 4 ) then the home pulse delivered to control is longer than the real home pulse this can lead to trouble in homes that do not coincide always. when both are ints divisble by 4, then the home pulse is same size as mfctr intended floating point has to do with emc nice numbers have to do with driver integer counts per user unit of measure might be an advantage to emc because most cnc manufacturers use integers there (Fanuc Heidenhain ) and there are some that use floats (PMAC EMC ) the general public (non-emc?) would think ints when thinking counts per unit of measure fwiw tomp John Kasunich wrote: > tomp wrote: > > ...snip > >> there are an infinite number of screw and gear and ppr combinations that >> wont yield nice counts per micron >> so it is possible that you cannot get it with the combination you have >> assembled >> > > Doesn't matter at all. > > Regards, > > John Kasunich > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
