I bought a bag of small, roller tipped microswitches, and have a couple mounts laid out but not carved yet.
Going thru searches on ebay just now, for both inductive, capacitative, and IR proximity switches, It sees like the majority of them are needing 6 volts or more, and around 300 ma each to function. Having seen some micropower capacitative switches in the textbooks of yore, it seems like the ball has been dropped in terms of being useful in a 5 volt logic circuit. Both the microswitch, and the inductive versions would seem to be sensitive to collecting swarf, particularly if its a rare earth magnet running a reed switch. My lathe seems to be relatively happy with a microswitch located under the back edge of the bed for Z homing where swarf tends to fall on past it, but x has to be kept swept clean because its actually on top of the carriage. I see a whole passel of stuff drilled onto GO704's in the hits I can get from google, but all of them preclude retaining the rubber swarf shields, which I'd say was not worth the tradeoff. There has to be a better way. So what sort of switches, and what swarf shielding to keep them relatively clean & accurate are others using? PM's with pix appreciated if you have the time. Thanks. 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
