Wah. We really need to get some sort of order in our development thinking here. Sure professional machines use three switches at one end of travel and two at the other but that does not obviate the need for lesser systems for us little light machine guys.
The fact that some folk would like to stack all of the limits on a single pin and then try to home from any one of them is not an error, it is an integrator decision that should/must be allowed in the software. Some of the recent changes to HAL and Motion have made it very difficult to use EMC2 in these circumstances. IMO we are getting close to a critical lack of proper flexible task planning. Ray On Wed, 2007-06-13 at 08:07 -0500, Chris Radek wrote: > On Tue, Jun 12, 2007 at 05:51:37PM +0100, Richard Arthur wrote: > > I have a problem with f-error being larger than normal when homing. > > ... > > > Am I correct in thinking the larger than nomal f-error is caused by the > > servo amp being disabled by the the limit switch during the homing sequence? > > Yes I'm sure you're right > > > What can you suggest to overcome this so that I can run it with minimum > > FERROR and MIN_FERROR settings? > > You have to arrange not to do that. A separate home switch seems like > the best answer, but it's probably not the easiest. (I'm not sure > what the easiest would be). I say the separate switch is best, > because any other solution would involve sometimes disabling your > safety measures on the limit switches. > > Chris > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
