Negative search vel, homes at the front Y0, sensor must be reading when machine is at the front, the back is Y30. This is one of the alternative I proposed, it really depends on what type of machine it is, I think his sensor is at the back, if he put it there, should be reasonable to assume he wants the machine to home at the back for some reason, and if you want to work with Y positive values, you will home at 30 not 0, I think I gave all possible alternatives already. I don't think there is a standard correct way of doing this. Inverting Y direction is the most horrible one to me, but I have seen it, more often than I'd like.
On April 3, 2026 7:31:39 AM GMT+08:00, andy pugh <[email protected]> wrote: >On Thu, 2 Apr 2026 at 23:49, Luca Toniolo <[email protected]> wrote: >> >> If your Y plus is toward the back of the machine, and your homing sensor is >> toward the back of the machine, you home at 30 not at 0. > >It's often better to home to 0 and set the lower limit negative. >LinuxCNC works equally well either way, but some CAM systems make >assumptions. >Admittedly generally with Z. (Fusion 360 CAM will often insert a G53 >Z0 as a full retract). > >You need to work out if the axis is reversed entirely, or just the >homing direction. > >The solution might be as simple as specifying negative HOME_SEARCH_VELOCITY > >-- >atp >"A motorcycle is a bicycle with a pandemonium attachment and is >designed for the especial use of mechanical geniuses, daredevils and >lunatics." >— George Fitch, Atlanta Constitution Newspaper, 1912 > > >_______________________________________________ >Emc-users mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
