On Fri, May 04, 2007 at 11:49:22PM -0500, Jon Elson wrote: > Has anyone set up tandem axes in EMC2? Getting two servo axes > to run in parallel isn't too hard to do in hal, although what > you do with two following errors is something to consider.
There is a tracker item for this feature request: http://sourceforge.net/tracker/index.php?func=detail&aid=1075625&group_id=6744&atid=356744 I don't think anyone is sure of all the things that need to be done before a gantry/tandem machine will work well under emc. You mention having two following errors, but I think that's solved by gantrykins (because each joint has its own following error)--however, feedback position is still a problem (which joint position do you use for the cartesian actual position?). (Also, gantrykins isn't a part of emc yet, not even in the cvs version--there's just the code from axis.unpy.net) Since the homing code I suggest hasn't been implemented yet, it's unknown whether it will actually be good enough homing for a gantry machine. There are the GUI problems for 4-axis, 3-joint machines. And then there are the problems we haven't even considered yet... what is really needed is a developer with such a machine and the desire to make it work. Jeff ------------------------------------------------------------------------- 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
