On Fri, 6 May 2022 at 11:42, gene heskett <ghesk...@shentel.net> wrote:
> The other thing that surprises me is the low frequencies they use, I'd > have to assume search speeds would be limited if a direct approach, as > opposed to a slide-by, for no other reason than to have room to overshoot > w/o a damaging crash. I doubt that the excitation frequency is the limiting factor here. It's more limited by how fast your machine can stop so that it doesn't use up all the 4mm. On my machines I have the sensor looking at a hole in the way that it slides past, then use the encoder index for the actual home position. Then the sensor response time is not an issue. Here is the target on the bed of my lathe. https://photos.app.goo.gl/HHbUobLPZbkUTcth9 It's a hole drilled in the bed, then filled with a delrin plug. -- 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-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
