[Emc-users] Change of Home Position

2007-09-09 Thread Andy Ibbotson
Hello Everyone, Over the last few nights I’ve experienced a coupled of “odd” events with EMC 2.1.7 – normally runs flawlessly. Running AXIS I’ve homed all axes to zero and then commenced running my Gcode. Last night the Y axis home position appeared to jump by 0.400” (as seen on the DRO), axis st

Re: [Emc-users] Change of Home Position

2007-09-09 Thread Ray Henry
Hi Andy I don't remember the details of your machine but if it's servo with encoders you might look at the location of the index pulse with respect to the angular position where the home switch closes or opens. In the old days we called this stuff a grid and if the switch closure was right close

Re: [Emc-users] Change of Home Position

2007-09-09 Thread Jon Elson
Andy Ibbotson wrote: > Hello Everyone, > > Over the last few nights I’ve experienced a coupled of “odd” events with > EMC 2.1.7 – normally runs flawlessly. Running AXIS I’ve homed all axes > to zero and then commenced running my Gcode. Last night the Y axis home > position appeared to jump by

Re: [Emc-users] Change of Home Position

2007-09-09 Thread Jon Elson
Ray Henry wrote: > Hi Andy > > I don't remember the details of your machine but if it's servo with > encoders you might look at the location of the index pulse with respect > to the angular position where the home switch closes or opens. In the > old days we called this stuff a grid and if the sw

Re: [Emc-users] Change of Home Position

2007-09-10 Thread Andy Ibbotson
ED] On Behalf Of Ray Henry Sent: 10 September 2007 02:23 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Change of Home Position Hi Andy I don't remember the details of your machine but if it's servo with encoders you might look at the location of the index pulse with r

Re: [Emc-users] Change of Home Position

2007-09-10 Thread Ray Henry
ent points though, Hmm more head scratching. > > Regards > Andy > > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ray Henry > Sent: 10 September 2007 02:23 > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users

Re: [Emc-users] Change of Home Position

2007-09-10 Thread Andy Ibbotson
7 21:30 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Change of Home Position Hi Andy Thanks for the update on your machine and your history with emc. Sorry that I pointed you in a wrong direction for possible home errors. It would be really difficult for a g-code file to chang

Re: [Emc-users] Change of Home Position

2007-09-17 Thread Andy Ibbotson
ard disk? Hmmm Regards Andy -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ray Henry Sent: 10 September 2007 21:30 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Change of Home Position Hi Andy Thanks for the update on your machine a

Re: [Emc-users] Change of Home Position

2007-09-17 Thread Jon Elson
Andy Ibbotson wrote: > Ray, > Looks like it maybe associated with the PC. My opto isolator card logic > chips on the PC side are powered from one of the PC PSU output > connectors. I've had a DVM attached to this supply and it appears to > "grey" out every now and again effectively removing steps