Ray Henry's story is a Murphy's Law occurrence. I once had a car with a starter problem. I changed the starter three or four times in quick succession. I could not figure out why so I purchased two, put one in the trunk along with tools. I never had to use it.
On Tue, Feb 6, 2024 at 4:20 AM John Dammeyer <jo...@autoartisans.com> wrote: > 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 > -- Addressee is the intended audience. If you are not the addressee then my consent is not given for you to read this email furthermore it is my wish you would close this without saving or reading, and cease and desist from saving or opening my private correspondence. Thank you for honoring my wish. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
