Greetings all When making the alu mount for these hall devices, I see ack the specs they aren't that sensitive for distance from the gear as long as its under 3mm's. So I am contemplating cutting out a mount whose face is curved to match that huge but only 60 tooth according to what parts lists I have, gear that is the backdrive gear on the spindle when the backgear is engaged. And milling a flat spot wide enough and deep enough that one of these hall devices would sink into, and that would protect the hall device should temp effects result in the gear actually touching the alu of the mount. If they are close together but half a tooth out of time, it doesn't seem to me the arc vs gear accuracy would be all that critical. An arc, something in the 6 inch diameter range looks about right. Is there a proximity effect when two of these are less than an inch apart?
If I can mount it offset, effectively putting the center of my 1/2" thick concoction on one edge of this gear, can I jb weld a piece of ferrous in line with a gear tooth, and file it flush with the tip of the tooth? The question about the jb weld is driven by this gear having a 65+ yo coat of dried, or wet oil on it, so the jb weld might fall right off. So would a good washing with acetone be good enough, or do I pay hazmat fees to get some mek into my possession? Or grind/file the end of that tooth shiny and then wash well with acetone? That sounds easier if I can keep the filings cleaned up. That ought to work as an index generator if there is room in the bowels of the head casting to clear one tooth 1/8" wider than the rest. And it would be an all in one piece setup. Thanks everybody. 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
