Exactly, Andre' Someday we must tackle the problem of these rotary definitions in axes' numbered 3-5. My recollection is that there was a start made by allowing the naming R,P,W and U,V,W. It is still possible to define 3-5 as linear rather than angular and they seem to run fine. Someday...
Rayh On Mon, 2007-06-04 at 08:49 -0500, Andre' Blanchard wrote: > At 09:44 AM 6/2/2007, you wrote: > >On Sat, Jun 02, 2007 at 09:26:44AM -0500, Ray Henry wrote: > > > > > > There are places in the emc where specific relationships between linear > > > and rotary axes are defined > > > >Ray is right: EMC2 implements an XYZABC machine as the ngc spec > >describes it: the XYZ are linear and the ABC are angular. However if > >you set your LINEAR_UNITS and ANGULAR_UNITS to the same value, you'll > >get behavior really close to what you want. > > > >For the nitty gritty details, have a look at > > > >http://www.linuxcnc.org/docs/2.1/html/gcode/main/index.html > > > >Especially note the "Feed Rate" section. If you want to get a certain > >feed along the cut you might want to consider using inverse time feed > >mode in your generated gcode, since EMC doesn't understand the > >geometry of your machine. > > > >Chris > > On all the controls I have worked with that had linear axes parallel to > X,Y,Z they were labeled U,V,W these were wire EDM machines. On the machines > I worked on the U,V axes were programmed as incremental distances from the > programmed absolute X,Y position in the block, but that is not always > true. More often I just program the X,Y position and an angle and let the > control figure out what to do with the U,V also have to tell the control at > what Z position it is to hold the programmed X,Y correct. > > ___________ > Andre' B. > __________ > Andre' B. Clear Lake, Wi. > > > > ------------------------------------------------------------------------- > 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 > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
