Re: [CAD_CAM_EDM_DRO] Limit switches on a lathe

I always set solid physical stops on my turret lathe(manual) to prevent the
tool reaching the chuck, and I would do the same if it was cnc. The error is
just not worth it.

I often have to bring the tool to approx 1mm from the chuck, but I know I'm
safe. On a cnc you could have the switch tied to a stalk, which is a travel
limit, so you get the best of both. And if there are multiple tools, have a
different stop selected per tool.

Regards
Roland



2009/4/9 Leslie Newell <les.newell@...>

>
>
> As you already realize, limits on Z aren't that useful. One fairly
> common solution at the chuck end is to have the limit mounted on an
> adjustable clamp. You can then quickly move it to suit your current
> setup. On the other end the best solution is probably a switch that
> trips if you hit the tailstock.
>
> Les
>
>
> Frank wrote:
> > I'm looking at where to place the limit switches on my cnc lathe
> conversion. The cross slide is obvious, but I'm not sure what to do on the
> long axis (z?) given that the position of the switches will be dictated by
> what chuck I have installed, and the position of the tail stock.
> >
> > How is this normally done? I'm using servos, so I want some protection
> against run away.
> >
> > Thanks,
> > Frank
> >
>
>
>

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