Greetings Peter; The 7i76d has a spindle encoder, so I'm looking for suggestions as to how to drive it.
The ER11 chuck has doubleD flats, but placing ATS-667's there precludes using a wrench to tighten a tool, so thats out. The top/rear of the ER11 has a slinger disk around 1.25" in diameter, currently ummolested by any markings, located about 1/4" above the doubleD flats. Has anyone pulled the collet, and made cuts to drive ATS-667's, which would need two for balance symmetry, effectively making a doubleD out of the slinger which could then be sensed with the ATS-667's. Or perhaps painted so that photo-reflective sensors, if fast enough, could read the paint. At 24k revs, what kind of paint wouldn't fly off? There is I think, an output available from the vfd too but I've no clue if its needing isolation or with the poor docs we have for this vfd, how to enable it. I have not noted an ac voltage on the spindle-+ or speed wires, so the isolation may be in the vfd. But two problems there, first being the top of the 8 bit value of the first 4 inputs being around 38 volts, considerable higher than I would expect from the vfd, and 2, I've just read thru the docs for the 7i76, hostmot2, hm2_pci, and sserriel and setsseriel, without finding out how to enable mode 1 so the first 4 inputs become analog enabled. Nor how much of a speed penalty there might be if those modes are enabled. So some guidance is needed. I think it would be nice if the pyvcp tach worked, which it isn't now. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
