Len
I am going to assume that you have a stepper machine or you would use the index pulse on the motor. I have a Bridgeport with stepers and limit switches and the method of "hitting" the limit switch is important. Mine has a ramp with about a 30 deg angle that contacts the switch.This with a fairly slow 5ipm movement to home gets me about +/-.005 from day to day.If I need more consistancy I dont shut off the computer I just kill the power to the drives. I also put a milled circular pocket on a fixture at a known location and MDI to that location and sweep it in.It wont take long when you get close. Terry On Sun Jul 27 23:10 , 'Len Shelton' [EMAIL PROTECTED]> sent: >Anyone care to describe their experiences on the accuracy of their home >switches, and the type, and relate that to the jigs they were using? > >>Len > > > > >-----Original Message----- >From: [EMAIL PROTECTED] >[EMAIL PROTECTED]','','','')">[EMAIL PROTECTED] On Behalf Of Len Shelton >Sent: Sunday, July 27, 2008 11:01 PM >To: 'Enhanced Machine Controller (EMC)' >Subject: Re: [Emc-users] Limit Switches > >>> EMC has been able to do this just about forever > >Thank you, John. I have witnessed this on my EMC2 powered pick n place, but >somehow didn't connect it to my router. > >>Len > > > > >------------------------------------------------------------------------- >This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >Build the coolest Linux based applications with Moblin SDK & win great >prizes >Grand prize is a trip for two to an Open Source event anywhere in the world >http://moblin-contest.org/redirect.php\?banner_id=100&url=/ >_______________________________________________ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users > > >------------------------------------------------------------------------- >This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >Build the coolest Linux based applications with Moblin SDK & win great prizes >Grand prize is a trip for two to an Open Source event anywhere in the world >http://moblin-contest.org/redirect.php\?banner_id=100&url=/ >_______________________________________________ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users ---- Msg sent via CableONE.net MyMail - http://www.cableone.net ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
