On 16.03.17 06:57, Gene Heskett wrote: > Maybe its ready for the next stage, which is installing a 4plex of IR > belt detectors so linuxcnc can know what gear the belts are in, and if I > ask for 1000 spindle rpms, it might suggest a better belt position to > get the motor back into its prime power band.
Gene, it's already bad enough changing belts on my mill, without belt detectors getting in the way, so I can't help wondering how much of a nuisance such gubbins will be on your machine. Would it perhaps be a little more convenient to have an encoder at the motor, as well as the one on the spindle, and let HAL compute the gear from the ratio? Or, more directly, compare a requested speed with motor top/bottom speed x current belt ratio, and squawk if it's out of range? > I already have those 3 leds setup in the postgui stuffs. However, I'd > like to have some sort of a tach on the motor itself. Ah, if there's to be an encoder/tach anyway, then the job's half done, without great fat opto-interrupters in the way, and less risk of them being clobbered during belt changes, I imagine. Erik (Who often tries to use the horizontal spindle for low speed work, just to avoid wrestling great v-belts through a small gap at head height for the vertical. Ugh!) ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
