No. On the mill towards the tool on the spindle axis (z) is -. Regardless of lathe or mill or CNC router Z decreases the closer the work gets to the tool.
> -----Original Message----- > From: Gregg Eshelman via Emc-users [mailto:emc- > us...@lists.sourceforge.net] > Sent: February 6, 2024 1:13 AM > To: Enhanced Machine Controller (EMC) > Cc: Gregg Eshelman > Subject: Re: [Emc-users] Axis direction > > Shouldn't cross slide motion be X and carriage motion be Z on a lathe? Like a > mill tipped on its back. > On a mill, towards the tool on the spindle axis (Z) is + and table movement > (X) to the right is + > > So think of standing on the left side of a Bridgeport then tipping it over to > the > left. > > On Monday, February 5, 2024 at 11:05:50 AM MST, John Dammeyer > <jo...@autoartisans.com> wrote: > > There's been an interesting discussion on the Unimat users list about axis > direction.� As usual someone can always find something on the web that > supports their opinion. > For example this one: > https://digit-chain.com/names-of-axes-in-cnc-machine/ > > However I disagree that movement towards the rotating axis, be it the chuck > on a lathe or the spinning cutter in a mill spindle,� is a Z+ direction.� > Doesn't > even seem intuitive to me either. > > Now it's true that you can set the Z=0.00 position anywhere in the G54... > spaces depending on what you touch off on.� And then a movement toward > the spindle could be positive.� But in an G53 machine coordinate space isn't a > Z- direction towards the spinning tool or part? > > That's the way I have my LCNC system and MACH system set up.� Even my > ELS is negative towards the lathe chuck. > > John > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
