> From: andy pugh [mailto:[email protected]] > > On Thu, 8 Dec 2022 at 20:36, John Dammeyer <[email protected]> wrote: > > The X axis is interesting in how it's set up. The switches appear to be in > > series with the NO switch on the X all the way out point and the NC switch > > at the X all the way in point. The rod moves and opens the circuit at > > either end. Very clever. > > > > That setup is quite clever, and seems to be predicated on being able to > adjust the stops. > It is, however, not very well protected and not very aesthetic.
Yes. They are covered. The photos are with the covers removed. > For protection from swarf I have taken to embedding my sensors in the > machine. Here is the limit switch for the X axis of my lathe: > https://photos.app.goo.gl/heHHn4rEm42nge259 > For the purpose of the photo the ball nut carrier linking screw has been > removed and the carriage has been pushed forwards. > The targets are two shallow holes machined into the underside of the > cross-slide. > This is the Z-axis target, another shallow hole, in this case plugged with > delrin to stop it filling with chips. > https://photos.app.goo.gl/CcjZELb8uRwehPX36 > (I know it looks like aluminium in the photo, because at that point it was, > but aluminium didn't work, as despite being non-inductive, it is conductive > enough to couple into the machine frame) > > -- Thanks for the photos. Novel concept. John _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
