Greetings all; While perusing the mpja.com catalog just now, I came across an item that could be used as the jog dial, with very similar hal code, its an auto radio etc power/volume control, stock 30403-SW on page 97, right hand column. 2 bucks.
That thing can't be anything but a mechanical encoder with A/B outputs in quadrature. 20 position instead of 100 like the $20 dial. Rated life 30k rotations, and 20k push switch operations. Admittedly that is not forever, but my GMC's 99 model radio still works perfectly with a lookalike to this $2 control 18 years later. 2 or 3 of those on a pendent box would give you total control of a lathe or 3 axis mill with just 2 or 3 knobs, no extra switches. 3 signal lines per pot, and power/ground in the pendent cable. Or 3 signal lines from one pot, and 2 for pwr/gnd, and 2 for axis selection via a switch if one pot was enough. That switch just below it could be diode encoded useing 2 wires to do the axis switching. 1 pot, 1 switch=3 axis independent speed jog control with an all off position. 7 wire cable, 6 wire & ground shield actually. Not as impressive if the frogs are watching, but I think just as serviceable on the shop floor. 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> ------------------------------------------------------------------------------ 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
