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
